EP3655579B1 - Tool module for textile machines - Google Patents

Tool module for textile machines Download PDF

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Publication number
EP3655579B1
EP3655579B1 EP18740844.8A EP18740844A EP3655579B1 EP 3655579 B1 EP3655579 B1 EP 3655579B1 EP 18740844 A EP18740844 A EP 18740844A EP 3655579 B1 EP3655579 B1 EP 3655579B1
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EP
European Patent Office
Prior art keywords
module body
module according
tool module
opening
bar
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EP18740844.8A
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German (de)
French (fr)
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EP3655579A1 (en
Inventor
Alexander Pass
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Groz Beckert KG
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Groz Beckert KG
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Publication of EP3655579A1 publication Critical patent/EP3655579A1/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/20—Arrangements or devices, e.g. needles, for inserting loops; Driving mechanisms therefor
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/10—Tufting machines operating with a plurality of needles, e.g. in one row
    • 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 invention relates to a tool module for textile machines, in particular for tufting applications.
  • the invention relates to a tool module for attachment to a bar of a textile machine, such as a tufting machine or a knitting machine.
  • the bar of a tufting machine or knitting machine is provided with a large number of tools, such as grippers, needles, perforated needles, knives or the like, which are grouped together in modules.
  • Each module comprises a base body in or on which a number of tools are attached. In order to equip the bar with tools, modules are connected to the bar.
  • the module bodies are typically provided with form-fit structures that facilitate the correct positioning of each module on the bar.
  • a module is provided with a larger recess provided in the module body, into which a positioning element can be inserted. This reaches through openings provided with alignment structures in the module body in order to come into positionally correct engagement with these openings.
  • the insert has more Alignment structures that come into contact with complementary shapes of the bar.
  • a tool module is known, the module body of which has alignment structures and recesses running along the alignment structures. These are intended to improve the positioning of the modules on a bar.
  • the DE 295 06 819 U1 discloses a tufting module having a module body in the form of a flat plate with a strip provided thereon. Shafts of needles are embedded in the narrow side of the flat plate. The bar provided on the module body engages a groove provided on a bar. Furthermore, the module body is penetrated by a total of three openings, two of which are threaded into which grub screws are inserted in order to align the module body with the bar. The last middle opening is used to hold a fastening screw.
  • the WO 03/056091 A1 discloses tool modules with a module body having a plurality of tools in grooves provided therefor. A PIN extending through all of the tools secures the tools in the module body. On the bar side, the module body has a wide strip-like projection to which correspondingly wide grooves are assigned on the bar.
  • the US 5 860 373 A1 also discloses textile tool modules with module bodies which have one or two open-edged fastening recesses with which the module body can be screwed to a bar.
  • the tools are sunk with their tool shafts into the narrow side of the module body.
  • the EP 2 570 540 A1 finally discloses a knitting tool holder with a module body which is formed from two cover plates and spacers arranged between them.
  • the module body has openings and recesses. Two of the openings can each serve to accommodate a fastening screw. Another opening can be used for weight reduction.
  • a large part of the drive power applied to the tools of a textile machine is converted into heat by friction, whereby a relatively large proportion of heat is generated on the tools.
  • this can lead to a longitudinal expansion of the bar, which can be disadvantageous for the operation of the machine.
  • the higher the working speed, i.e. the oscillation frequency of the bar there is a considerable increase in the dynamic loads, particularly those acting on bearings and drives, as well as an increased bending load on the bar.
  • the object of the invention is to provide a concept with which the operating speed of a textile machine, the tools of which are contained in modules, can be increased.
  • the tool module according to the invention has a module body with a contact surface on or on which an alignment structure is provided for positioning on a bar.
  • the alignment structure includes a continuous or interrupted bar which is arranged on the edge of a contact surface with which the module body comes into contact with the bar.
  • the bar then has a support surface which rests on a further surface of the bar.
  • the bar is arranged on a narrow side of the module body.
  • the tool module is penetrated by at least one opening that does not match the fastening opening, which opening thus has neither fastening function nor positioning function (form-fit function).
  • the opening penetrating the contact surface and separated from the fastening opening on the side facing away from the contact surface reduces the weight of the tool module, reduces the heat transfer surface from the module to the bar and thus also reduces the heating of the bar.
  • the at least one opening can promote cooling of the module during operation of the machine.
  • the heat generated by the friction of the tools on a backing or other textile or on a thread is absorbed by the module body and given off to the environment and now to a reduced extent to the machine bar. Excessive heat input into the bar and thus an elongation of the same during operation is avoided.
  • the heat is dissipated into the ambient air.
  • the vibrating operation of a bar with the tools attached to it forces convection.
  • the at least one of the mounting hole When the machine is in operation, a separate opening creates additional turbulence in the air in contact with the module, which leads to increased convection and thus increased heat dissipation.
  • the module body is preferably produced in a casting process, a zinc alloy preferably being used as the casting material.
  • the tools for example tufting needles, grippers, knives or the like, are gripped with a fastening end in this module body, i.e. cast into it.
  • the module bodies After the module bodies have solidified and cooled, they can have a certain deviation from straightness (unevenness), in particular on their position-determining surfaces, for example the contact surface.
  • straightness fluctuations of the module body are reduced and the influence of such straightness deviations on the positioning accuracy is reduced. The entire clamping situation of the tool module is thus improved.
  • the contact surface of the tool module is the surface facing the bar and resting against it during operation.
  • the contact surface is preferably flat, with elements belonging to the alignment structure projecting away from the contact surface.
  • Such elements can include projections in the form of prismatic, cylindrical or dome-shaped projections, which preferably extend parallel to one another away from the contact surface. Corresponding recesses in the bar are typically assigned to these projections.
  • the projections include a continuous or, better still, interrupted bar, which is arranged adjacent to a narrow side of the module body. This narrow side is the side that is penetrated by the tool shafts of the textile tools. If the bar is interrupted, it can be reduced to two projections standing at the corners of the module. This results in a maximum weight reduction with complete retention or improvement of the positioning accuracy. If the bar is the only existing alignment structure, the modules on the bar can be adjusted or moved laterally to the machine equipment.
  • the above-mentioned, for example, cylindrical or otherwise designed projections are preferably arranged on both sides of the fastening opening on a line which is arranged parallel to the narrow side of the module body and thus to the strip provided there.
  • This division creates a third zone between a zone of the module body in which the tool shafts are held and another zone which contains the fastening opening and the projections on both sides of the same, in which the additional openings for weight reduction, straightness improvement and convection improvement are arranged.
  • the zone containing the tool shafts and the zone used for fastening are connected to one another by two, preferably three, webs oriented parallel to one another, of which at least two, preferably three, can each have the same cross section.
  • the fastening opening has a diameter which substantially corresponds to the diameter of one of the projections.
  • this is not mandatory.
  • the aim is to adapt the diameter of the fastening opening to the fastening means in order not to excessively increase the fastening section of the module body weaknesses. If a certain low flexibility of the module body is desired at all, this can be achieved by the two to three webs extending between the fastening section and the tool section.
  • a tool module 10 is illustrated, to which a module body 11 and tools 12 to 18 held thereon belong.
  • Tufting needles are exemplified as tools.
  • other tools that work in parallel in parallel with one another such as, for example, perforated needles, grippers, fingers, knives or the like, can equally be provided.
  • the tools 12 to 18 are arranged parallel to one another and anchored with their respective shaft ends in the module body 12. Seven tools are shown as an example. However, any other desired number of tools, including individual tools, can also be provided on the module body 11.
  • the module body 11 is preferably made of metal, in particular a zinc alloy, a zinc / aluminum alloy or another metal alloy that melts at a temperature below 1000 ° C.
  • the module body 11 can be designed as a die-cast body.
  • the module body 11 essentially has the shape of a flat plate with a narrow side 20 from which at least one tool, here the tools 12 to 18, extend away.
  • the module body 11 also has an essentially flat contact surface 21 which, in use, is in contact with a bar for receiving and positioning the tools 12 to 18.
  • an essentially flat rear side or also provided with further structures is formed, which is oriented essentially parallel to the contact surface 21.
  • elements which form an alignment structure 22 or belong to such a structure.
  • These elements include, for example, two cylindrical projections 23, 24, which preferably protrude from the contact surface 21 parallel to one another.
  • the ends of the projections 23, 24 can each be provided with an insertion bevel (bevel), a rounded dome or the like.
  • the projections 23, 24 can have cross-sectional shapes that differ from the circular shape, such as, for example, polygonal shapes, or can be designed as rounded domes.
  • the alignment structure 22 additionally or alternatively includes a rib 26 provided with an interruption 25, which is arranged between the narrow side 20 and the contact surface 21.
  • the rib 26 can be separated from the contact surface 20 by a groove 27 - for this purpose it is in particular on Figure 4 referenced.
  • the rib 26 preferably has a bearing surface 21a oriented at right angles to the bearing surface 21. Both contact surfaces 21, 21a are in contact with a bar in the assembled state.
  • the bottom of the recess 25 is preferably approximately in one plane with the contact surface 21.
  • the remaining sections of the rib 26 on both sides of the recess 25 form teeth that come to rest on a corresponding contact surface of a bar and thus the axial position of the tools 12 to 18 determine.
  • the projections 23, 24 are arranged on a line 28, which is preferably oriented parallel to the groove 27 (if present) and to the narrow side 20.
  • a fastening opening 29 is also provided on this line 28 or in the vicinity thereof.
  • the line 28 intersects the fastening opening 29, preferably, but not necessarily, the center of the Opening on line 28.
  • the fastening opening 29 penetrates the contact surface 21 and the entire module body 11.
  • the diameter of the preferably circular fastening opening 29 is preferably only slightly larger than the fastening element in order to achieve as little weakening of the module body 11 as possible in the vicinity of the fastening opening 29.
  • the fastening opening 29 can be surrounded by an insert 30 made of brass or another suitable material, for example, which is inserted into the casting mold when the module body 11 is cast. This enables high fastening forces to be absorbed without damaging the module body 11, which is made of die-cast zinc or a similar material.
  • the fastening opening 29 can be provided with an internal thread. However, it is also possible to dispense with such an insert 30.
  • the module body 11 thus has a fastening section 31 which contains the projections 23, 24 (if present) and the fastening opening 29.
  • the module body 11 also has a holding section 32 into which the fastening ends of the shanks of the tools 12 to 18 extend.
  • One, preferably a plurality of additional openings 33, 34 are provided in the module body 11 between the fastening section 31 and the holding section 32, such as in particular from Figure 2 , 3, and 5 emerges.
  • the additional openings 33, 34 are designed to be as large as possible and are preferably arranged symmetrically to a line which is defined by the center point of the opening 29 and the central axis of the central tool 15. This applies to an uneven number of tools. If there is an even number of tools, the mirror axis, to which the opening 33, 34 are symmetrical, is defined by a line, on the one hand runs through the center of the fastening opening 29 and on the other hand centrally between two tools.
  • the additional opening 33 or 34 preferably has a trapezoidal basic shape with rounded corners and overlaps with respect to the axial direction of the tools 12 to 18 (in FIGS Figures 3 and 5 the vertical direction) both the adjacent projection 23 or 24 and the fastening opening 29. This is in FIG Figure 5 symbolized using the example of the additional opening 34 by two dashed lines 35, 36. If the projection 23 is missing, the outer opening edge of the opening 34 and thus the line 35 in any case preferably runs through the external tool 18. The same applies to the opening 33 and the tool 12.
  • the long edge of the trapezoidal basic structure facing the projection 23 on the fastening opening 29 can be curved outward in an arc-shaped manner.
  • the corners are preferably rounded.
  • a three webs 37, 38, 39 ( Figure 3 ) formed connecting structure via which the fastening section 31 is connected to the holder section 32.
  • the two webs 37 and 39 preferably have matching rectangular or square cross-sections and are oriented parallel to one another and are of the same length.
  • the central web 38 can be made shorter and is preferably aligned with the central tool 15. It is preferably oriented parallel to the outer webs 37, 39 and it can have the same cross-section as the outer webs 37, 39 or a different cross-section.
  • the outer tools 12, 18 can be aligned with the webs 37, 39.
  • the tool module 10 described so far is fastened to a bar in operation by bringing it into the desired position by means of the alignment structure 22 and fixing it in this position. If present, the projections 23, 24 are inserted into corresponding recesses in the bar and the rib or strip 26 and the contact surface 21 are brought into contact with the bar.
  • the tool module 10 is held captive on the bar by means of a screw or a suitable corresponding means which extends in or through the fastening opening 29.
  • the bar swings back and forth essentially in the axial direction of the tools 12 to 18, the tools 12 to 18 frictionally engaging a corresponding mostly flat textile and performing an operation on it, for example piercing threads, forming loops or the like .
  • the friction generated on the tools 12 to 18 heats them, with a certain proportion of the heat being introduced into the module body 11.
  • the reduced contact surface 21 makes it more difficult to transfer the heat to the bar.
  • the openings 33, 34 have a swirling effect on the ambient air when the bar moves back and forth and thus promote heat dissipation, in particular from the holding section 32.
  • the webs 37, 38, 39 further reduce the heat transfer from the holding section 32 to the fastening section 31 .
  • the additional openings 33, 34 lead to a weight reduction of the module body 11, so that the choice of material can be made independently of the material density.
  • the weight reduction reduces the dynamic load of the bar that occurs during the oscillating back and forth movement of a bar Barre and the machine parts leading them, which in turn enables an increase in the working speed.
  • a tool module 10 has a module body 11 with a contact surface 21 and an alignment structure 22.
  • the contact surface 21 is penetrated by a fastening opening 29 and additionally by at least one, preferably several additional openings 33, 34.
  • the area of an additional opening 33 or 34 is larger, preferably significantly larger, for example at least twice or three times as large as the cross-sectional area of the fastening opening 29. This creates a module body 11 with which an increased working speed of the textile machine can be achieved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Knitting Machines (AREA)

Description

Die Erfindung betrifft ein Werkzeugmodul für Textilmaschinen, insbesondere für Tuftinganwendungen.The invention relates to a tool module for textile machines, in particular for tufting applications.

Insbesondere betrifft die Erfindung ein Werkzeugmodul zur Befestigung an einer Barre einer Textilmaschine, wie beispielsweise einer Tuftingmaschine oder auch einer Wirkmaschine.In particular, the invention relates to a tool module for attachment to a bar of a textile machine, such as a tufting machine or a knitting machine.

Die Barre einer Tuftingmaschine oder Wirkmaschine ist mit einer großen Anzahl von Werkzeugen, wie beispielsweise Greifern, Nadeln, Lochnadeln, Messern oder dergleichen versehen, die gruppenweise in Modulen zusammengefasst sind. Jedes Modul umfasst einen Grundkörper, in oder an dem eine Anzahl von Werkzeugen befestigt sind. Um die Barre mit Werkzeugen zu bestücken, werden Module mit der Barre verbunden.The bar of a tufting machine or knitting machine is provided with a large number of tools, such as grippers, needles, perforated needles, knives or the like, which are grouped together in modules. Each module comprises a base body in or on which a number of tools are attached. In order to equip the bar with tools, modules are connected to the bar.

Dieses Prinzip ist aus der DE 42 23 642 C2 , der DE 44 11 277 A1 , der US 5,947,942 zu entnehmen. Die Modulkörper sind dabei typischerweise mit Formschlussstrukturen versehen, die eine lagerichtige Positionierung jedes Moduls an der Barre erleichtern.This principle is from the DE 42 23 642 C2 , the DE 44 11 277 A1 , the U.S. 5,947,942 refer to. The module bodies are typically provided with form-fit structures that facilitate the correct positioning of each module on the bar.

Weiter ist aus der DE 199 28 885 C1 ein Modul mit einer in dem Modulkörper vorgesehenen größeren Ausnehmung versehen, in die ein Positionierelement einlegbar ist. Dieses durchgreift mit Ausrichtstrukturen in dem Modulkörper vorgesehene Öffnungen, um mit diesen Öffnungen in lagerichtigen Eingriff zu kommen. Das Einlegeteil weist weitere Ausrichtstrukturen auf, die mit dazu komplementären Formen der Barre in Anlage kommen. Ein Satz verschiedener Einlegeteile, die mit unterschiedlichen Ausrichtstrukturen versehen sind, ermöglicht die Anpassung an verschiedene Barrensysteme.Next is from the DE 199 28 885 C1 a module is provided with a larger recess provided in the module body, into which a positioning element can be inserted. This reaches through openings provided with alignment structures in the module body in order to come into positionally correct engagement with these openings. The insert has more Alignment structures that come into contact with complementary shapes of the bar. A set of different inserts, which are provided with different alignment structures, enables adaptation to different bar systems.

Weiter ist aus der DE 10 2012 112 553 B3 ein Werkzeugmodul bekannt, dessen Modulkörper Ausrichtstrukturen und an den Ausrichtstrukturen entlang laufende Vertiefungen aufweist. Diese sollen einer verbesserten Positionierung der Module an einer Barre dienen.Next is from the DE 10 2012 112 553 B3 a tool module is known, the module body of which has alignment structures and recesses running along the alignment structures. These are intended to improve the positioning of the modules on a bar.

Die DE 295 06 819 U1 offenbart ein Tuftingmodul mit einem Modulkörper in Gestalt einer flachen Platte, mit einer daran vorgesehenen Leiste. In die Schmalseite der flachen Platte sind Schäfte von Nadeln eingelassen. Die an dem Modulkörper vorgesehene Leiste greift an einer Bar vorgesehene Nut. Weiter ist der Modulkörper von insgesamt drei Öffnungen durchsetzt, von denen zwei mit Gewinde versehen sind, in das Madenschrauben eingesetzt sind, um den Modulkörper an der Barre auszurichten. Die letzte mittlere Öffnung dient der Aufnahme einer Befestigungsschraube.The DE 295 06 819 U1 discloses a tufting module having a module body in the form of a flat plate with a strip provided thereon. Shafts of needles are embedded in the narrow side of the flat plate. The bar provided on the module body engages a groove provided on a bar. Furthermore, the module body is penetrated by a total of three openings, two of which are threaded into which grub screws are inserted in order to align the module body with the bar. The last middle opening is used to hold a fastening screw.

Die WO 03/056091 A1 offenbart Werkzeugmodule mit einem Modulkörper, das mehrere Werkzeuge in dafür vorgesehene Nuten aufweist. Ein sich durch alle Werkzeuge erstreckender PIN sichert die Werkzeuge in dem Modulkörper. Barrenseitig weist der Modulkörper einen breiten leistenartigen Vorsprung auf, dem entsprechend breite Nuten an der Bar zugeordnet sind.The WO 03/056091 A1 discloses tool modules with a module body having a plurality of tools in grooves provided therefor. A PIN extending through all of the tools secures the tools in the module body. On the bar side, the module body has a wide strip-like projection to which correspondingly wide grooves are assigned on the bar.

Die US 5 860 373 A1 offenbart ebenfalls Textilwerkzeugmodule mit Modulkörpern, die ein oder zwei randoffene Befestigungsausnehmungen aufweisen, mit denen die Modulkörper mit einer Barre verschraubbar sind. Die Werkzeuge sind mit ihren Werkzeugschäften in die Schmalseite des Modulkörpers eingesenkt. In unmittelbarer Nachbarschaft ist eine Ausrichtleiste vorgesehen, so dass der Modulkörper in Seitenansicht ein L- oder T-förmiges Profil erhält.The US 5 860 373 A1 also discloses textile tool modules with module bodies which have one or two open-edged fastening recesses with which the module body can be screwed to a bar. The tools are sunk with their tool shafts into the narrow side of the module body. There is one in the immediate vicinity Alignment bar provided so that the module body is given an L- or T-shaped profile in a side view.

Die EP 2 570 540 A1 offenbart schließlich eine Wirkwerkzeugfassung mit einem Modulkörper, der aus zwei Deckplatinen und dazwischen angeordneten Abstandshaltern ausgebildet ist. Der Modulkörper weist Öffnungen und Ausnehmungen auf. Zwei der Öffnungen können zur Aufnahme jeweils einer Befestigungsschraube dienen. Eine weitere Öffnung kann der Gewichtsreduktion dienen.The EP 2 570 540 A1 finally discloses a knitting tool holder with a module body which is formed from two cover plates and spacers arranged between them. The module body has openings and recesses. Two of the openings can each serve to accommodate a fastening screw. Another opening can be used for weight reduction.

Ein großer Teil der auf die Werkzeuge einer Textilmaschine aufgebrachten Antriebsleistung wird durch Reibung in Wärme verwandelt, wobei ein relativ großer Wärmeanteil an den Werkzeugen entsteht. Insbesondere bei Tuftingmaschinen und Kettenwirkmaschinen kann dies zu einer Längsausdehnung der Barre führen, was für den Betrieb der Maschine nachteilig sein kann. Außerdem trifft mit zunehmender Arbeitsgeschwindigkeit, d.h. Schwingfrequenz der Barre, eine erhebliche Steigerung der dynamischen, insbesondere auf Lager und Antriebe einwirkenden Lasten sowie auch eine erhöhte Biegebelastung der Barre auf.A large part of the drive power applied to the tools of a textile machine is converted into heat by friction, whereby a relatively large proportion of heat is generated on the tools. In the case of tufting machines and warp knitting machines in particular, this can lead to a longitudinal expansion of the bar, which can be disadvantageous for the operation of the machine. In addition, the higher the working speed, i.e. the oscillation frequency of the bar, there is a considerable increase in the dynamic loads, particularly those acting on bearings and drives, as well as an increased bending load on the bar.

Es ist Aufgabe der Erfindung, ein Konzept anzugeben, mit dem sich die Arbeitsgeschwindigkeit einer Textilmaschine, deren Werkzeuge in Modulen gefasst sind, steigern lässt.The object of the invention is to provide a concept with which the operating speed of a textile machine, the tools of which are contained in modules, can be increased.

Diese Aufgabe wird mit dem Werkzeugmodul nach Anspruch 1 gelöst:
Das erfindungsgemäße Werkzeugmodul weist einen Modulkörper mit einer Anlagefläche auf, auf oder an der eine Ausrichtstruktur zur Positionierung an einer Barre vorgesehen ist. Die Ausrichtstruktur umfasst eine durchgehende oder unterbrochene Leiste, die am Rand einer Anlagefläche angeordnet ist, mit der der Modulkörper mit der Barre in Anlage kommt. Die Leiste weist dann eine Auflagefläche auf, die auf einer weiteren Fläche der Barre aufliegt. Die Leiste ist an einer Schmalseite des Modulkörpers angeordnet.This object is achieved with the tool module according to claim 1:
The tool module according to the invention has a module body with a contact surface on or on which an alignment structure is provided for positioning on a bar. The alignment structure includes a continuous or interrupted bar which is arranged on the edge of a contact surface with which the module body comes into contact with the bar. The bar then has a support surface which rests on a further surface of the bar. The bar is arranged on a narrow side of the module body.

Erfindungsgemäß ist das Werkzeugmodul von mindestens einer nicht mit der Befestigungsöffnung übereinstimmenden Öffnung durchsetzt, die somit weder Befestigungsfunktion noch Positionierungsfunktion (Formschlussfunktion) hat. Die die Anlagefläche durchsetzende und an der von der Anlagefläche abgewandten Seite offene von der Befestigungsöffnung getrennte Öffnung reduziert das Gewicht des Werkzeugmoduls, reduziert die Wärmeübergangsfläche von dem Modul auf die Barre und reduziert somit auch die Erwärmung der Barre. Außerdem kann die mindestens eine Öffnung während des Betriebs der Maschine die Kühlung des Moduls fördern. Die durch Reibung der Werkzeuge an einem Backing oder sonstigem Textil oder an einem Faden entstehende Wärme wird von dem Modulkörper aufgenommen und an die Umgebung sowie nun in reduzierter Weise an die Maschinenbarre abgegeben. Übergroße Wärmeeinbringung in die Barre und somit eine Längung derselben während des Betriebs wird vermieden. Idealerweise wird die Wärme in die Umgebungsluft abgeleitet. Durch den schwingenden Betrieb einer Barre mit den daran befestigten Werkzeugen wird Konvektion erzwungen. Die wenigstens eine von der Befestigungsöffnung getrennte Öffnung erzeugt bei Betrieb der Maschine eine zusätzliche Verwirbelung der mit dem Modul in Berührung stehenden Luft, was zu einer erhöhten Konvektion und somit erhöhten Wärmeabfuhr führt.According to the invention, the tool module is penetrated by at least one opening that does not match the fastening opening, which opening thus has neither fastening function nor positioning function (form-fit function). The opening penetrating the contact surface and separated from the fastening opening on the side facing away from the contact surface reduces the weight of the tool module, reduces the heat transfer surface from the module to the bar and thus also reduces the heating of the bar. In addition, the at least one opening can promote cooling of the module during operation of the machine. The heat generated by the friction of the tools on a backing or other textile or on a thread is absorbed by the module body and given off to the environment and now to a reduced extent to the machine bar. Excessive heat input into the bar and thus an elongation of the same during operation is avoided. Ideally, the heat is dissipated into the ambient air. The vibrating operation of a bar with the tools attached to it forces convection. The at least one of the mounting hole When the machine is in operation, a separate opening creates additional turbulence in the air in contact with the module, which leads to increased convection and thus increased heat dissipation.

Der Modulkörper ist vorzugsweise in einem Gießprozess hergestellt, wobei als Gießmaterial vorzugsweise eine Zinklegierung zur Anwendung kommt. Die Werkzeuge, beispielsweise Tuftingnadeln, Greifer, Messer oder dergleichen, werden mit einem Befestigungsende in diesem Modulkörper gefasst, d.h. in diesen eingegossen. Nach dem Erstarren und Abkühlen der Modulkörper können diese insbesondere an ihren positionsbestimmenden Flächen, zum Beispiel der Anlagefläche, eine gewisse Geradheitsabweichung (Unebenheit) aufweisen. Durch die Ausbildung von mindestens einer zusätzlichen Öffnung, die die Anlagefläche und den Modulkörper durchsetzt, werden Geradheitsschwankungen des Modulkörpers reduziert und der Fehlereinfluss solcher Geradheitsabweichungen auf die Positioniergenauigkeit reduziert. Die gesamte Einspannsituation des Werkzeugmoduls wird somit verbessert.The module body is preferably produced in a casting process, a zinc alloy preferably being used as the casting material. The tools, for example tufting needles, grippers, knives or the like, are gripped with a fastening end in this module body, i.e. cast into it. After the module bodies have solidified and cooled, they can have a certain deviation from straightness (unevenness), in particular on their position-determining surfaces, for example the contact surface. By forming at least one additional opening that penetrates the contact surface and the module body, straightness fluctuations of the module body are reduced and the influence of such straightness deviations on the positioning accuracy is reduced. The entire clamping situation of the tool module is thus improved.

Die Anlagefläche des Werkzeugmoduls ist die der Barre zugewandte und im Betrieb an dieser anliegende Fläche. Vorzugsweise ist die Anlagefläche eben ausgebildet, wobei von der Anlagefläche zu der Ausrichtstruktur gehörige Elemente weg ragen. Solche Elemente können Vorsprünge in Gestalt von prismatischen, zylinderförmigen oder kuppelförmigen Vorsprüngen gehören, die sich vorzugsweise parallel zueinander von der Anlagefläche weg erstrecken. Diesen Vorsprüngen sind typischerweise entsprechende Ausnehmung in der Barre zugeordnet. Zu den Vorsprüngen gehört eine durchgehende oder besser noch unterbrochene Leiste, die an eine Schmalseite des Modulkörpers angrenzend angeordnet ist. Diese Schmalseite ist diejenige Seite, die von Werkzeugschäften der Textilwerkzeuge durchsetzt ist. Wenn die Leiste unterbrochen ist, kann sie auf zwei an den Ecken des Moduls stehende Vorsprünge reduziert sein. Dies erbringt eine maximale Gewichtsreduktion bei vollständigem Erhalt oder Verbesserung der Positioniergenauigkeit. Ist die Leiste die einzige vorhandene Ausrichtstruktur lassen sich die Module an der Barre zur Maschineneinrichtung seitlich justieren oder verschieben.The contact surface of the tool module is the surface facing the bar and resting against it during operation. The contact surface is preferably flat, with elements belonging to the alignment structure projecting away from the contact surface. Such elements can include projections in the form of prismatic, cylindrical or dome-shaped projections, which preferably extend parallel to one another away from the contact surface. Corresponding recesses in the bar are typically assigned to these projections. The projections include a continuous or, better still, interrupted bar, which is arranged adjacent to a narrow side of the module body. This narrow side is the side that is penetrated by the tool shafts of the textile tools. If the bar is interrupted, it can be reduced to two projections standing at the corners of the module. This results in a maximum weight reduction with complete retention or improvement of the positioning accuracy. If the bar is the only existing alignment structure, the modules on the bar can be adjusted or moved laterally to the machine equipment.

Die oben genannten zum Beispiel zylinderförmig oder anderweitig ausgebildeten Vorsprünge sind vorzugsweise zu beiden Seiten der Befestigungsöffnung auf einer Linie angeordnet, die zu der Schmalseite des Modulkörpers und somit zu der dort vorgesehenen Leiste parallel angeordnet ist. Durch diese Aufteilung wird zwischen einer Zone des Modulkörper, in dem die Werkzeugschäfte gefasst sind, und einer anderen Zone, die die Befestigungsöffnung und zu beiden Seiten derselben die Vorsprünge enthält, eine dritte Zone geschaffen, in der die zusätzlichen Öffnungen zur Gewichtsreduktion, Geradheitsverbesserung und Konvektionsverbesserung angeordnet sind. Somit sind die die Werkzeugschäfte fassende Zone und die der Befestigung dienende Zone durch zwei, vorzugsweise drei, zueinander parallel orientierte Stege miteinander verbunden, von denen wenigstens zwei, vorzugsweise drei, jeweils den gleichen Querschnitt aufweisen können.The above-mentioned, for example, cylindrical or otherwise designed projections are preferably arranged on both sides of the fastening opening on a line which is arranged parallel to the narrow side of the module body and thus to the strip provided there. This division creates a third zone between a zone of the module body in which the tool shafts are held and another zone which contains the fastening opening and the projections on both sides of the same, in which the additional openings for weight reduction, straightness improvement and convection improvement are arranged. Thus, the zone containing the tool shafts and the zone used for fastening are connected to one another by two, preferably three, webs oriented parallel to one another, of which at least two, preferably three, can each have the same cross section.

Typischerweise weist die Befestigungsöffnung einen Durchmesser auf, der wesentlich mit dem Durchmesser eines der Vorsprünge übereinstimmt. Dies ist jedoch nicht zwingend. Es wird jedoch angestrebt, den Durchmesser der Befestigungsöffnung an das Befestigungsmittel anzupassen, um den Befestigungsabschnitt des Modulkörpers nicht über Gebühr zu schwächen. Sofern überhaupt eine gewisse geringe Nachgiebigkeit des Modulkörpers gewünscht wird, kann diese durch die zwei bis drei sich zwischen den Befestigungsabschnitt und dem Werkzeugabschnitt erstreckenden Stege erbracht werden.Typically, the fastening opening has a diameter which substantially corresponds to the diameter of one of the projections. However, this is not mandatory. However, the aim is to adapt the diameter of the fastening opening to the fastening means in order not to excessively increase the fastening section of the module body weaknesses. If a certain low flexibility of the module body is desired at all, this can be achieved by the two to three webs extending between the fastening section and the tool section.

Weitere Einzelheiten vorteilhafter Ausführungsformen der Erfindung sind Gegenstand der Zeichnung, der Beschreibung oder von Ansprüchen. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:

  • Figur 1 das erfindungsgemäße Werkzeugmodul, in einer schematisierten perspektivischen Darstellung mit Blick auf die Anlagefläche,
  • Figur 2 das Werkzeugmodul nach Figur 1, in einer perspektivischen Darstellung mit Blick auf seine von der Anlagefläche weg weisenden Seite,
  • Figur 3 das Werkzeugmodul nach Figur 1 und 2, in Draufsicht mit Blick auf die Befestigungsseite,
  • Figur 4 das Werkzeugmodul nach Figur 1 bis 3, in Seitenansicht,
  • Figur 5 das Werkzeugmodul nach den Figuren 1 bis 4, in Draufsicht auf seine Anlagefläche,
  • Figur 6 das Werkzeugmodul nach den Figuren 1 bis 5 mit Blickrichtung auf die Spitzen der Werkzeuge.
Further details of advantageous embodiments of the invention are the subject matter of the drawing, the description or the claims. An exemplary embodiment of the invention is shown in the drawing. Show it:
  • Figure 1 the tool module according to the invention, in a schematic perspective view with a view of the contact surface,
  • Figure 2 the tool module after Figure 1 , in a perspective view with a view of its side facing away from the contact surface,
  • Figure 3 the tool module after Figures 1 and 2 , in plan view with a view of the fastening side,
  • Figure 4 the tool module after Figure 1 to 3 , in side view,
  • Figure 5 the tool module after the Figures 1 to 4 , in plan view of its contact surface,
  • Figure 6 the tool module after the Figures 1 to 5 looking towards the tips of the tools.

In Figur 1 ist zur lediglich beispielhaften Veranschaulichung von Merkmalen der Erfindung ein Werkzeugmodul 10 veranschaulicht, zu dem ein Modulkörper 11 und an diesem gehaltene Werkzeuge 12 bis 18 gehören. Als Werkzeuge sind beispielhaft Tuftingnadeln veranschaulicht. Es können aber gleichermaßen anderweitige, im Gleichtakt parallel zueinander arbeitende Werkzeuge wie zum Beispiel Lochnadeln, Greifer, Finger, Messer oder dergleichen, vorgesehen sein. Unabhängig davon, sind die Werkzeuge 12 bis 18 parallel zueinander angeordnet und mit ihrem jeweiligen Schaftende in dem Modulkörper 12 verankert. Beispielhaft sind sieben Werkzeuge dargestellt. Es können aber auch Werkzeuge in jeder anderen gewünschten Anzahl, auch Einzelwerkzeuge an dem Modulkörper 11 vorgesehen sein.In Figure 1 For the mere exemplary illustration of features of the invention, a tool module 10 is illustrated, to which a module body 11 and tools 12 to 18 held thereon belong. Tufting needles are exemplified as tools. However, other tools that work in parallel in parallel with one another, such as, for example, perforated needles, grippers, fingers, knives or the like, can equally be provided. Independently of this, the tools 12 to 18 are arranged parallel to one another and anchored with their respective shaft ends in the module body 12. Seven tools are shown as an example. However, any other desired number of tools, including individual tools, can also be provided on the module body 11.

Der Modulkörper 11 ist vorzugsweise aus Metall, insbesondere einer Zinklegierung, einer Zink/Aluminium-Legierung oder einer anderen, bei einer Temperatur unterhalb 1000°C schmelzenden Metalllegierung ausgebildet. Insbesondere kann der Modulkörper 11 als Druckgusskörper ausgebildet sein.The module body 11 is preferably made of metal, in particular a zinc alloy, a zinc / aluminum alloy or another metal alloy that melts at a temperature below 1000 ° C. In particular, the module body 11 can be designed as a die-cast body.

Der Modulkörper 11 hat im Wesentlichen die Form einer flachen Platte mit einer Schmalseite 20, von der sich zumindest ein Werkzeug, hier die Werkzeuge 12 bis 18 weg erstrecken. Weiter weist der Modulkörper 11 eine im Wesentlichen ebene Anlagefläche 21 auf, die in Gebrauch mit einer Barre zur Aufnahme und Positionierung der Werkzeuge 12 bis 18 in Berührung steht. An der gegenüber liegenden Seite den Modulkörpers 11 ist eine im Wesentlichen ebene oder auch mit weiteren Strukturen versehene Rückseite ausgebildet, die im Wesentlichen parallel zu der Anlagefläche 21 orientiert ist.The module body 11 essentially has the shape of a flat plate with a narrow side 20 from which at least one tool, here the tools 12 to 18, extend away. The module body 11 also has an essentially flat contact surface 21 which, in use, is in contact with a bar for receiving and positioning the tools 12 to 18. On the opposite side of the module body 11, an essentially flat rear side or also provided with further structures is formed, which is oriented essentially parallel to the contact surface 21.

Insbesondere an der Anlagefläche 21 wie auch im Übergang zu der Schmalseite 20 sind Elemente vorgesehene, die eine Ausrichtstruktur 22 bilden oder zu einer solchen gehören. Zu diesen Elementen gehören beispielsweise zwei zylinderförmige Vorsprünge 23, 24, die vorzugsweise parallel zueinander von der Anlagefläche 21 weg ragen. Die Enden der Vorsprünge 23, 24 können jeweils mit einer Einführschräge (Fase), einer gerundeten Kuppe oder dergleichen versehen sein. Alternativ können die Vorsprünge 23, 24 von der Kreisform abweichende Querschnittsformen, wie beispielsweise mehreckige Formen, aufweisen oder als gerundete Kuppeln ausgebildet sein.In particular on the contact surface 21 as well as in the transition to the narrow side 20 elements are provided, which form an alignment structure 22 or belong to such a structure. These elements include, for example, two cylindrical projections 23, 24, which preferably protrude from the contact surface 21 parallel to one another. The ends of the projections 23, 24 can each be provided with an insertion bevel (bevel), a rounded dome or the like. Alternatively, the projections 23, 24 can have cross-sectional shapes that differ from the circular shape, such as, for example, polygonal shapes, or can be designed as rounded domes.

Zu der Ausrichtstruktur 22 gehört zusätzlich oder alternativ eine mit einer Unterbrechung 25 versehene Rippe 26, die zwischen der Schmalseite 20 und der Anlagefläche 21 angeordnet ist. Die Rippe 26 kann von der Anlagefläche 20 durch eine Nut 27 getrennt sein - es wird dazu insbesondere auf Figur 4 verwiesen. Die Rippe 26 weist vorzugsweise eine zu der Anlagefläche 21 im rechten Winkel orientierte Auflagefläche 21a auf. Beide Anlageflächen 21, 21a stehen in montiertem Zustand mit einer Barre in Berührung. Die Ausnehmung 25 liegt mit ihrem Boden vorzugsweise etwa in einer Ebene mit der Anlagefläche 21. Die zu beiden Seiten der Ausnehmung 25 vorhandenen Restabschnitte der Rippe 26 bilden Zähne, die an einer entsprechenden Anlagefläche einer Barre zur Anlage kommen und somit die Axialposition der Werkzeuge 12 bis 18 bestimmen. Die Anlagefläche 21 bestimmt hingegen deren laterale Positionierung.The alignment structure 22 additionally or alternatively includes a rib 26 provided with an interruption 25, which is arranged between the narrow side 20 and the contact surface 21. The rib 26 can be separated from the contact surface 20 by a groove 27 - for this purpose it is in particular on Figure 4 referenced. The rib 26 preferably has a bearing surface 21a oriented at right angles to the bearing surface 21. Both contact surfaces 21, 21a are in contact with a bar in the assembled state. The bottom of the recess 25 is preferably approximately in one plane with the contact surface 21. The remaining sections of the rib 26 on both sides of the recess 25 form teeth that come to rest on a corresponding contact surface of a bar and thus the axial position of the tools 12 to 18 determine. The contact surface 21, on the other hand, determines its lateral positioning.

Wie Figur 5 erkennen lässt, sind die Vorsprünge 23, 24 auf einer Linie 28 angeordnet, die vorzugweise parallel zu der Nut 27 (falls vorhanden), sowie zu der Schmalseite 20 orientiert ist. Auf dieser Linie 28 oder in der Nähe derselben ist außerdem eine Befestigungsöffnung 29 vorgesehen. Die Line 28 schneidet die Befestigungsöffnung 29, wobei vorzugsweise, aber nicht zwingend, der Mittelpunkt der Öffnung auf der Linie 28 liegt. Die Befestigungsöffnung 29 durchdringt die Anlagefläche 21 und den gesamten Modulkörper 11. Der Durchmesser der vorzugsweise kreisrunden Befestigungsöffnung 29 ist vorzugsweise lediglich geringfügig größer als das Befestigungselement, um in Nachbarschaft der Befestigungsöffnung 29 eine möglichst lediglich geringe Schwächung des Modulkörpers 11 zu erzielen. Die Befestigungsöffnung 29 kann von einem Einsatz 30 zum Beispiel aus Messing oder einem anderen geeigneten Material umgeben sein, der bei der Gießherstellung des Modulkörpers 11 in die Gießform eingesetzt wird. Dies ermöglicht die Aufnahme von hohen Befestigungskräften ohne Schädigung des aus Zinkdruckguss oder einem ähnlichen Material bestehenden Modulkörpers 11. Die Befestigungsöffnung 29 kann mit einem Innengewinde versehen sein. Es ist jedoch auch möglich, auf einen solchen Einsatz 30 zu verzichten.How Figure 5 As can be seen, the projections 23, 24 are arranged on a line 28, which is preferably oriented parallel to the groove 27 (if present) and to the narrow side 20. A fastening opening 29 is also provided on this line 28 or in the vicinity thereof. The line 28 intersects the fastening opening 29, preferably, but not necessarily, the center of the Opening on line 28. The fastening opening 29 penetrates the contact surface 21 and the entire module body 11. The diameter of the preferably circular fastening opening 29 is preferably only slightly larger than the fastening element in order to achieve as little weakening of the module body 11 as possible in the vicinity of the fastening opening 29. The fastening opening 29 can be surrounded by an insert 30 made of brass or another suitable material, for example, which is inserted into the casting mold when the module body 11 is cast. This enables high fastening forces to be absorbed without damaging the module body 11, which is made of die-cast zinc or a similar material. The fastening opening 29 can be provided with an internal thread. However, it is also possible to dispense with such an insert 30.

Der Modulkörper 11 weist somit einen Befestigungsabschnitt 31 auf, der die Vorsprünge 23, 24 (falls vorhanden) sowie die Befestigungsöffnung 29 enthält. Weiter weist der Modulkörper 11 einen Halteabschnitt 32 auf, in den sich die Befestigungsenden der Schäfte der Werkzeuge 12 bis 18 hinein erstrecken. Zwischen dem Befestigungsabschnitt 31 und dem Halteabschnitt 32 sind in dem Modulkörper 11 ein, vorzugsweise mehrere zusätzlichen Öffnungen 33, 34 vorgesehen, wie insbesondere aus Figur 2, 3, und 5 hervorgeht. Die zusätzlichen Öffnungen 33, 34 sind möglichst großflächig ausgebildet und vorzugsweise symmetrisch zu einer Linie angeordnet, die durch den Mittelpunkt der Öffnung 29 und die Mittelachse des mittleren Werkzeugs 15 definiert ist. Dies gilt für ungerade Werkzeuganzahl. Bei gerader Werkzeuganzahl wird die Spiegelachse, zu der die Öffnung 33, 34 symmetrisch liegen, durch eine Linie definiert, die einerseits durch den Mittelpunkt der Befestigungsöffnung 29 und andererseits mittig zwischen zwei Werkzeugen verläuft.The module body 11 thus has a fastening section 31 which contains the projections 23, 24 (if present) and the fastening opening 29. The module body 11 also has a holding section 32 into which the fastening ends of the shanks of the tools 12 to 18 extend. One, preferably a plurality of additional openings 33, 34 are provided in the module body 11 between the fastening section 31 and the holding section 32, such as in particular from Figure 2 , 3, and 5 emerges. The additional openings 33, 34 are designed to be as large as possible and are preferably arranged symmetrically to a line which is defined by the center point of the opening 29 and the central axis of the central tool 15. This applies to an uneven number of tools. If there is an even number of tools, the mirror axis, to which the opening 33, 34 are symmetrical, is defined by a line, on the one hand runs through the center of the fastening opening 29 and on the other hand centrally between two tools.

Die zusätzliche Öffnung 33 bzw. 34 weist vorzugsweise eine trapezförmige Grundform mit gerundeten Ecken auf und überschneidet bezüglich der Axialrichtung der Werkzeuge 12 bis 18 (in den Figuren 3 und 5 die Vertikalrichtung) sowohl den jeweils benachbarten Vorsprung 23 bzw. 24 als auch die Befestigungsöffnung 29. Dies ist in Figur 5 am Beispiel der zusätzlichen Öffnung 34 durch zwei gestrichelte Linien 35, 36 symbolisiert. Fehlt der Vorsprung 23, verläuft der äußere Öffnungsrand der Öffnung 34 und somit die Linie 35 jedenfalls vorzugsweise durch das außenständige Werkzeug 18. Entsprechendes gilt für die Öffnung 33 und das Werkzeug 12.The additional opening 33 or 34 preferably has a trapezoidal basic shape with rounded corners and overlaps with respect to the axial direction of the tools 12 to 18 (in FIGS Figures 3 and 5 the vertical direction) both the adjacent projection 23 or 24 and the fastening opening 29. This is in FIG Figure 5 symbolized using the example of the additional opening 34 by two dashed lines 35, 36. If the projection 23 is missing, the outer opening edge of the opening 34 and thus the line 35 in any case preferably runs through the external tool 18. The same applies to the opening 33 and the tool 12.

Die dem Vorsprung 23 an der Befestigungsöffnung 29 zugewandte lange Kante der trapezförmigen Grundstruktur kann bogenförmig nach außen gewölbt sein. Außerdem sind die Ecken vorzugsweise gerundet. Damit entsteht zwischen dem Befestigungsabschnitt 31 und dem Halteabschnitt 32 eine durch drei Stege 37, 38, 39 (Figur 3) gebildete Verbindungsstruktur, über die der Befestigungsabschnitt 31 mit dem Halterabschnitt 32 verbunden ist. Die beiden Stege 37 und 39 weisen vorzugsweise übereinstimmende rechteckige oder quadratische Querschnitte auf und sind parallel zueinander orientiert sowie gleich lang. Der mittige Steg 38 kann kürzer ausgebildet sein und fluchtet vorzugsweise mit dem mittleren Werkzeug 15. Er ist zu den äußeren Stegen 37, 39 vorzugsweise parallel orientiert und er kann einen gleichen Querschnitt wie die äußeren Stege 37, 39 oder einen davon abweichenden Querschnitt aufweisen. Die Äußeren Werkzeuge 12, 18 können mit den Stegen 37, 39 fluchten.The long edge of the trapezoidal basic structure facing the projection 23 on the fastening opening 29 can be curved outward in an arc-shaped manner. In addition, the corners are preferably rounded. In this way, between the fastening section 31 and the holding section 32, a three webs 37, 38, 39 ( Figure 3 ) formed connecting structure via which the fastening section 31 is connected to the holder section 32. The two webs 37 and 39 preferably have matching rectangular or square cross-sections and are oriented parallel to one another and are of the same length. The central web 38 can be made shorter and is preferably aligned with the central tool 15. It is preferably oriented parallel to the outer webs 37, 39 and it can have the same cross-section as the outer webs 37, 39 or a different cross-section. The outer tools 12, 18 can be aligned with the webs 37, 39.

Das insoweit beschriebene Werkzeugmodul 10 wird in Betrieb an einer Barre befestigt, indem es mittel der Ausrichtstruktur 22 in die gewünschte Position gebracht und in dieser fixiert wird. Falls vorhanden werden die Vorsprünge 23, 24 in entsprechende Ausnehmungen der Barre eingeführt und die Rippe oder Leiste 26 sowie die Anlagefläche 21 mit der Barre in Anlage gebracht. Mittels einer Schraube oder einem geeigneten entsprechenden Mittel, das sich in oder durch die Befestigungsöffnung 29 erstreckt, wird das Werkzeugmodul 10 unverlierbar an der Barre gehalten.The tool module 10 described so far is fastened to a bar in operation by bringing it into the desired position by means of the alignment structure 22 and fixing it in this position. If present, the projections 23, 24 are inserted into corresponding recesses in the bar and the rib or strip 26 and the contact surface 21 are brought into contact with the bar. The tool module 10 is held captive on the bar by means of a screw or a suitable corresponding means which extends in or through the fastening opening 29.

In Betrieb schwingt die Barre im Wesentlichen in Axialrichtung der Werkzeuge 12 bis 18 hin und her, wobei die Werkzeuge 12 bis 18 dabei reibend mit einem entsprechenden meist flächigen Textil in Eingriff kommen und an diesem eine Operation durchführen, beispielsweise Fäden hindurchstechen, Schlingen bilden oder dergleichen. Die an den Werkzeugen 12 bis 18 entstehende Reibung erwärmt diese, wobei die Wärme zu einem gewissen Anteil in den Modulkörper 11 eingetragen wird. Die reduzierte Anlagefläche 21 erschwert jedoch die Übertragung der Wärme auf die Barre. Zugleich wirken die Öffnungen 33, 34 bei schneller Hin- und Herbewegung der Barre verwirbelnd auf die Umgebungsluft und fördern somit die Wärmeabfuhr, insbesondere von dem Halteabschnitt 32. Weiter reduzieren die Stege 37, 38, 39 die Wärmeübertragung von dem Halteabschnitt 32 auf den Befestigungsabschnitt 31.In operation, the bar swings back and forth essentially in the axial direction of the tools 12 to 18, the tools 12 to 18 frictionally engaging a corresponding mostly flat textile and performing an operation on it, for example piercing threads, forming loops or the like . The friction generated on the tools 12 to 18 heats them, with a certain proportion of the heat being introduced into the module body 11. However, the reduced contact surface 21 makes it more difficult to transfer the heat to the bar. At the same time, the openings 33, 34 have a swirling effect on the ambient air when the bar moves back and forth and thus promote heat dissipation, in particular from the holding section 32. The webs 37, 38, 39 further reduce the heat transfer from the holding section 32 to the fastening section 31 .

Es wird darauf hingewiesen, dass die zusätzlichen Öffnungen 33, 34 zu einer Gewichtsreduktion des Modulkörpers 11 führen, so dass dessen Materialwahl unabhängig von der Materialdichte getroffen werden kann. Die Gewichtsreduktion reduziert die bei der schwingenden Hin- und Herbewegung einer Barre auftretende dynamische Belastung der Barre und der sie führenden Maschinenteile, was umgekehrt eine Erhöhung der Arbeitsgeschwindigkeit ermöglicht.It is pointed out that the additional openings 33, 34 lead to a weight reduction of the module body 11, so that the choice of material can be made independently of the material density. The weight reduction reduces the dynamic load of the bar that occurs during the oscillating back and forth movement of a bar Barre and the machine parts leading them, which in turn enables an increase in the working speed.

Ein erfindungsgemäßes Werkzeugmodul 10 weist einen Modulkörper 11 mit einer Anlagefläche 21 und einer Ausrichtstruktur 22 auf. Die Anlagefläche 21 ist von einer Befestigungsöffnung 29 und zusätzlich von wenigstens einer, vorzugsweise mehreren zusätzlichen Öffnungen 33, 34 durchsetzt. Die Fläche einer zusätzlichen Öffnung 33 oder 34 ist größer, vorzugsweise deutlich größer, beispielsweise wenigstens doppelt oder dreimal so groß wie die Querschnittsfläche der Befestigungsöffnung 29. Dadurch wird ein Modulkörper 11 geschaffen, mit dem sich eine erhöhte Arbeitsgeschwindigkeit der Textilmaschine erreichen lässt. Bezugszeichen: 10 Werkzeugmodul 11 Modulkörper 12-18 Werkzeuge 20 Schmalseite 21 Anlagefläche 22 Ausrichtstruktur 23, 24 Vorsprünge 25 Ausnehmung 26 Rippe 27 Nut 28 Linie 29 Befestigungsöffnung 30 Einsatz 31 Befestigungsabschnitt 32 Halteabschnitt 33, 34 zusätzliche Öffnungen 35, 36 gestrichelte Linien 37, 38, 39 Stege A tool module 10 according to the invention has a module body 11 with a contact surface 21 and an alignment structure 22. The contact surface 21 is penetrated by a fastening opening 29 and additionally by at least one, preferably several additional openings 33, 34. The area of an additional opening 33 or 34 is larger, preferably significantly larger, for example at least twice or three times as large as the cross-sectional area of the fastening opening 29. This creates a module body 11 with which an increased working speed of the textile machine can be achieved. Reference number: 10 Tool module 11 Module body 12-18 Tools 20th Narrow side 21 Contact surface 22nd Alignment structure 23, 24 Ledges 25th Recess 26th rib 27 Groove 28 line 29 Mounting hole 30th commitment 31 Fastening section 32 Holding section 33, 34 additional openings 35, 36 dashed lines 37, 38, 39 Bridges

Claims (12)

  1. Textile tool module (10), in particular for tufting applications,
    with a module body (11) which has an alignment structure (22) for positioning on a bar comprising a contact face (21) and an interrupted or continuous strip (26) protruding beyond the contact face (21),
    with tools (12-18) held in the module body (11),
    with a fixing opening (29) which passes through the contact face (21) and the module body (11), and
    with at least one additional opening (33, 34) which is separate from the fixing opening (19) and passes through the contact face (21) and the module body (11),
    characterised in that the strip (26) is arranged on a narrow side (20) of the module body (11) through which tool shafts of the held tools (12-18) pass, and
    that the at least one additional opening (33, 34) of the module body (11) is arranged in a zone between the fixing opening (29) and the strip (26), and
    that the module body (11) is thus divided by the at least one additional opening (33, 34) into a fixing portion (31) and a tool holding portion (32) which are connected together via at least two webs (37, 38, 39).
  2. Textile tool module according to claim 1, characterised in that the contact face (21) is configured so as to be flat.
  3. Textile tool module according to any of the preceding claims, characterised in that the alignment structure (22) comprises protrusions (23, 24) pointing away from the contact face (21).
  4. Textile tool module according to claim 3, characterised in that the protrusions (23, 24) comprise two prismatic, cylindrical or cupola-shaped protrusions (23, 24) which point away from the contact face (21) and are parallel to one another.
  5. Textile tool module according to claim 4, characterised in that the protrusions (23, 24) are arranged on a line (28) which is oriented parallel to the strip (26).
  6. Textile tool module according to claim 5, characterised in that the fixing opening (29) is arranged on the line (28).
  7. Textile tool module according to any of the preceding claims, characterised in that the fixing opening (29) is formed in an insert (30) fitted with an internal thread.
  8. Textile tool module according to any of the preceding claims, characterised in that two additional openings (33, 34) are provided which are separate from the fixing opening (29).
  9. Textile tool module according to claim 8, characterised in that the two openings (33, 34) are configured so as to be mirror-symmetrical to each other.
  10. Textile tool module according to claims 5 and 8, characterised in that the additional openings (33, 34) are arranged on a line which is parallel to the line (28) on which the protrusions (23, 24) are arranged.
  11. Textile tool module according to claim 1, characterised in that at least two of the webs (37, 38, 39) have substantially identical cross-sections.
  12. Textile tool module according to any of the preceding claims, characterised in that the module body (11) is a casting.
EP18740844.8A 2017-07-17 2018-07-16 Tool module for textile machines Active EP3655579B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017116043.4A DE102017116043A1 (en) 2017-07-17 2017-07-17 Tool module for textile machines
PCT/EP2018/069266 WO2019016134A1 (en) 2017-07-17 2018-07-16 Tool module for textile machines

Publications (2)

Publication Number Publication Date
EP3655579A1 EP3655579A1 (en) 2020-05-27
EP3655579B1 true EP3655579B1 (en) 2021-06-23

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Application Number Title Priority Date Filing Date
EP18740844.8A Active EP3655579B1 (en) 2017-07-17 2018-07-16 Tool module for textile machines

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US (1) US10738400B2 (en)
EP (1) EP3655579B1 (en)
CN (1) CN111247282A (en)
DE (1) DE102017116043A1 (en)
WO (1) WO2019016134A1 (en)

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Also Published As

Publication number Publication date
CN111247282A (en) 2020-06-05
US10738400B2 (en) 2020-08-11
US20200173084A1 (en) 2020-06-04
EP3655579A1 (en) 2020-05-27
WO2019016134A1 (en) 2019-01-24
DE102017116043A1 (en) 2019-01-17

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