EP0014831B1 - Device for securing a row of needles in a u-section needle carrier of a textile machine using needles - Google Patents

Device for securing a row of needles in a u-section needle carrier of a textile machine using needles Download PDF

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Publication number
EP0014831B1
EP0014831B1 EP80100125A EP80100125A EP0014831B1 EP 0014831 B1 EP0014831 B1 EP 0014831B1 EP 80100125 A EP80100125 A EP 80100125A EP 80100125 A EP80100125 A EP 80100125A EP 0014831 B1 EP0014831 B1 EP 0014831B1
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EP
European Patent Office
Prior art keywords
section
needle
grooves
needle carrier
extending
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EP80100125A
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German (de)
French (fr)
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EP0014831A1 (en
Inventor
Josef Egerer
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Staedtler and Uhl KG
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Staedtler and Uhl KG
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Priority to AT80100125T priority Critical patent/ATE401T1/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02Gill boxes or other drafting machines employing fallers or like pinned bars
    • D01H5/12Details
    • D01H5/14Pinned bars

Definitions

  • the invention is directed to a device for fastening a pinstrip in a U-shaped needle carrier in needle-bearing textile machines by means of a projection-groove connection.
  • textile machines are, for example, stretching machines, combing machines, panting machines, fibrillation machines, perforating machines, spreader bars and open-end spools and the like.
  • the needles are subject to extremely high loads, so that they often break off and the pinstripes have to be replaced with new strips.
  • the pinstripes are either soldered or glued into the groove-shaped cavities of the U-shaped needle carriers.
  • This type of fastening is also subject to considerable stresses, for example in the form of vibrations transmitted to the material, so that the fastening is occasionally destroyed, which leads to considerable interruptions in operation.
  • the known attachment of such pin strips also makes it difficult to replace the needle strips, because the binder must be completely removed from the very narrow grooves before a new pin strip can be used.
  • pinstripes Another type of attachment of pinstripes consists in pressing them against the one wall of the U-shaped needle carrier by means of wedge-shaped clamping strips. This requires a considerable size, so that such a fastening cannot be considered for all machines. In addition, additional components such as screws and the like are in this type of fixation. necessary to give the terminal strips the required pressure and to hold them themselves. Finally, extended cavities of the needle carriers are also used at their foot end, into which the pin strip, which also has a widened foot, is inserted from the side. This type of attachment requires certain tolerances, which makes it difficult to reliably fix the pinstrip in the needle carrier. Above all, however, the space required for the lateral insertion of the pinstripes is rarely available in such machines.
  • the object of the invention is a simplified way of attaching pinstripes in a needle carrier in needle-bearing textile machines in such a way that without additional auxiliary elements brings about a fixed mechanical connection corresponding to the static requirements of these machines with the least possible expenditure of time, so that overall the replacement of pinstripes can be significantly simplified.
  • the cost of replacing pinstripes should be reduced to a minimum.
  • At least one U-leg of the needle carrier or in the pinstripe at a distance from one another has a plurality of parallel grooves which, when arranged in the needle carrier, extend from the interior of the U and open at the free end of the leg, at least at their inner end in one run at an acute angle or parallel to the U-web, the needle strip or the needle carrier at a distance corresponding to the spacing of the grooves laterally having cams which engage in the grooves when the needle strip is inserted.
  • the individual pinstrip can be easily inserted with its cams into the corresponding grooves of the needle carrier and gets its intended firm fit at the end of the groove.
  • the number of grooves required for the U-shaped needle carrier and cams of the pinstrip depends on the strength requirements of the individual case.
  • the cams can be attached by deep drawing during the manufacture of the pinstrip. However, it is also possible to form-fit the cams to the pinstrip if this consists of a synthetic resin molded body.
  • the grooves can have a section extending from the leg end, approximately perpendicular to the U-web of the needle carrier, and an adjoining end section running at an acute angle to the U-web.
  • Another embodiment provides that the vertically extending section is adjoined by an end section running parallel to the U-web of the needle carrier. In any case, the pin strips with their cams are reliably held in the acute-angled or transverse section of the groove of the needle carrier.
  • transition from the approximately perpendicular section to the acute-angled or parallel end section is arched or angled, preferably then at right angles.
  • Another modification of the invention exists in that at least two inner end sections arranged parallel to one another extend from an outer section of the groove running approximately perpendicular to the U-web.
  • the invention provides for the depth of the groove in its end section to be continuously reduced.
  • the groove becomes flatter towards the end.
  • the cam guided in the groove experiences an increasing tightening, which presses the pinstripe against the opposite wall side of the U-shaped needle carrier.
  • the same effect also results when the width of the groove continuously decreases in its end section, so that the cam of the needle strip guided in the groove, when it is pushed forward in the groove, increasingly stands out from the groove base and thus a lateral displacement of the Pinstripe causes.
  • the groove has a cross section approximately corresponding to the cam profile.
  • the cam cross section or the cam profile are preferably approximately semicircular or triangular.
  • needle carrier 2 which have a U-shaped cross-section and are made from the two U-legs 3 u. 4 and the connecting U-web 5 exist.
  • the cavity 6 of the needle carrier 2 serves to receive a needle strip 7, in which a certain number of needles 1 are fixed at a precisely predetermined distance from one another.
  • a pinstripe 7 can have a very different design. It is prefabricated and is used in its entirety in the needle carrier 2 fastened in the textile machine and in turn firmly anchored therein.
  • the needle strip 7 has cams 8 which are arranged at a distance x from one another and in FIGS. 1 and 3 at the same height and which have an approximately conical shape.
  • the pinstrip 7 is formed using an angular rail 9 or a U-shaped rail 10, the cams 8, 8 'can be formed, for example, by deep drawing in the corresponding rail 9 or 10.
  • the pinstripe 7 has a synthetic resin or plastic body 11, as in the embodiment according to FIG. 9, the cams 8 ′′ are integrally formed on it.
  • the U-shaped needle carrier 2 has, in a number corresponding to the number of cams 8, 8 ', 8 "of the pinstrip 7 and in the distance x used there between the cams 8, a series of grooves 12 which extend into the inside of the leg 4 of the needle carrier 2.
  • These grooves 12 consist of a section 14 opening out at the free end 13 of the leg 4, which, with the exception of the embodiment according to Fig. 14, extends approximately perpendicular to the U-web 5.
  • This section 14 then adjoins via an arc 15 (see FIG. 12) or at a right angle 16 or at an obtuse angle 17 (see FIG. 13) to at least one end section 18 or 18 ', which in the embodiments according to FIGS. 1-6 u 12. Runs approximately parallel to the U-web 5 of the needle carrier 2.
  • FIG. 12 Runs approximately parallel to the U-web 5 of the needle carrier 2.
  • FIG. 14 shows a solution in which the entire groove 12 ′ runs from the free end 13 of the U-leg 4 in a straight line and at an acute angle y to the U-web 5. Apart from certain tolerances, the cross section of these grooves 12 ′ corresponds to that of the cams 8 of the pinstrip 7.
  • FIG. 8 of the needle strip 7, each with two cams 8 one above the other corresponds to the embodiment of the needle carrier 2 according to FIG. 13, in which section 14 of the groove 12 is connected by two obliquely running, parallel superimposed end sections 18 which each receive one of the cams 8 '.
  • FIG. 9 shows an embodiment with cams 8 "arranged obliquely one above the other, which, which is not reproduced in detail but is self-evident, requires a corresponding groove formation of the associated pinstrip 7.
  • FIG. 5 shows that the bottom 19 of the end section 18 the groove 12 ends at the end towards the inside of the leg 4, ie the groove becomes increasingly shallower.
  • the cams 8 are brought into correspondence with the grooves 12 of the needle carrier 2, then inserted into the sections 14 to the end thereof and then further into the end sections 18 moved until the cams 8 reach the end stop or a tight fit. It is then sufficient to close the cavity 6 of the needle carrier 2 laterally, so that the needle strip 7 can no longer shift laterally. The removal takes place in the reverse order.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

1. A device for securing a needle strip (7) in a U-shaped needle carrier (2) on needle carrying textile machines by means of a projection and groove connection, characterized in that there are provided in at least one of the sides (4) of the U of the needle carrier (2), or in the needle strip (7), a plurality of spaced, adjacent, parallel grooves (12 ; 12') which, when arranged in the needle carrier (2), proceed from the inner space (6) of the U and extend to the free end (13) of said side thereof, said grooves, at least at their inner ends, extending at an acute angle to or parallel to the base (5) of the U ; and that the needle strip (7), or the needle carrier (2) respectively, comprises lateral projection (8 ; 8' ; 8") spaced at a distance (x) corresponding to the spacing (z) between the grooves (12), the arrangement being such that said projections engage in the grooves (12) upon insertion of the needle strip (7).

Description

Die Erfindung richtet sich auf eine Vorrichtung zum Befestigen eines Nadelstreifens in einem U-förmigen Nadelträger bei nadeltragenden Textilmaschinen mittels einer Vorsprung-Nut-Verbindung. Solche Textilmaschinen sind beispielsweise Streckmaschinen, Kämm-Maschinen, Hechelmaschinen, Fibrilliermaschinen, Perforiermaschinen, Breithalter und Openend-Spulen u.dgl.The invention is directed to a device for fastening a pinstrip in a U-shaped needle carrier in needle-bearing textile machines by means of a projection-groove connection. Such textile machines are, for example, stretching machines, combing machines, panting machines, fibrillation machines, perforating machines, spreader bars and open-end spools and the like.

Im Betrieb solcher Maschinen unterliegen die Nadeln ausserordentlich hohen Beanspruchungen, so dass sie vielfach abbrechen und die Nadelstreifen durch neue Streifen ersetzt werden müssen. Die Nadelstreifen sind in die nutförmigen Hohlräume der U-förmigen Nadelträger entweder eingelötet oder eingeklebt. Diese Art der Befestigung unterliegt, beispielsweise in Form von auf das Material übertragenen Schwingungen, gleichfalls erheblichen Beanspruchungen, so dass gelegentlich die Befestigung zerstört wird, was zu erheblichen Betriebsunterbrechungen führt. Die bekannte Befestigung solcher Nadelstreifen erschwert darüber hinaus das Auswechseln der Nadeistreifen, weil hierzu das Bindemittel, bevor ein neuer Nadelstreifen eingesetzt werden kann, aus den sehr schmalen Nuten vollständig entfernt werden muss.In the operation of such machines, the needles are subject to extremely high loads, so that they often break off and the pinstripes have to be replaced with new strips. The pinstripes are either soldered or glued into the groove-shaped cavities of the U-shaped needle carriers. This type of fastening is also subject to considerable stresses, for example in the form of vibrations transmitted to the material, so that the fastening is occasionally destroyed, which leads to considerable interruptions in operation. The known attachment of such pin strips also makes it difficult to replace the needle strips, because the binder must be completely removed from the very narrow grooves before a new pin strip can be used.

Eine andere Art der Befestigung von Nadelstreifen besteht darin, diese mittels keilförmiger Klemmleisten an die eine Wand des U-förmigen Nadelträgers anzupressen. Dies erfordert eine beachtliche Baugrösse, so dass eine solche Befestigung nicht bei allen Maschinen in Betracht kommen kann. Ausserdem sind bei dieser Art der Fixierung zusätzliche Bauteile, wie Schrauben u.dgl. notwendig, um den Klemmleisten die erforderliche Pressung zu erteilen und sie selbst zu halten. Es werden schliesslich auch an ihrem Fussende erweiterte Hohlräume der Nadelträger verwendet, in die von der Seite her der ebenfalls einen verbreiterten Fuss aufweisende Nadelstreifen eingeschoben wird. Diese Art der Befestigung erfordert bestimmte Toleranzen, was die zuverlässige Fixierung des Nadelstreifens in dem Nadelträger erschwert. Vor allem ist aber bei derartigen Maschinen selten der zum seitlichen Einschieben der Nadelstreifen erforderliche Raum vorhanden.Another type of attachment of pinstripes consists in pressing them against the one wall of the U-shaped needle carrier by means of wedge-shaped clamping strips. This requires a considerable size, so that such a fastening cannot be considered for all machines. In addition, additional components such as screws and the like are in this type of fixation. necessary to give the terminal strips the required pressure and to hold them themselves. Finally, extended cavities of the needle carriers are also used at their foot end, into which the pin strip, which also has a widened foot, is inserted from the side. This type of attachment requires certain tolerances, which makes it difficult to reliably fix the pinstrip in the needle carrier. Above all, however, the space required for the lateral insertion of the pinstripes is rarely available in such machines.

Aufgabe der Erfindung ist eine vereinfachte Art der Befestigung von Nadelstreifen in einem Nadelträger bei nadeltragenden Textilmaschinen in einer Weise, die ohne zusätzliche Hilfselemente eine feste und den statischen Erfordernissen dieser Maschinen entsprechende mechanische Verbindung bei einem geringstmöglichen zeitlichen Aufwand herbeiführt, so dass insgesamt der Ersatz von Nadelstreifen erheblich vereinfacht werden kann. Der für den Austausch von Nadelstreifen erforderliche Kostenaufwand soll auf ein geringstmögliches Mass herabgesetzt werden.The object of the invention is a simplified way of attaching pinstripes in a needle carrier in needle-bearing textile machines in such a way that without additional auxiliary elements brings about a fixed mechanical connection corresponding to the static requirements of these machines with the least possible expenditure of time, so that overall the replacement of pinstripes can be significantly simplified. The cost of replacing pinstripes should be reduced to a minimum.

Nach dem Grundgedanken der Erfindung sind in wenigstens einem U-Schenkel des Nadelträgers bzw. im Nadelstreifen im Abstand nebeneinander mehrere parallele, bei Anordnung im Nadelträger von dem U-Innenraum ausgehende und am freien Schenkelende ausmündende Nuten angeordnet, die mindestens an ihrem inneren Ende in einem spitzen Winkel oder parallel zu dem U-Steg verlaufen, wobei der Nadelstreifen bzw. der Nadelträger in einem dem Abstand der Nuten entsprechenden Abstand seitlich Nocken aufweist, die beim Einsetzen des Nadelstreifens in die Nuten eingreifen.According to the basic idea of the invention, at least one U-leg of the needle carrier or in the pinstripe at a distance from one another has a plurality of parallel grooves which, when arranged in the needle carrier, extend from the interior of the U and open at the free end of the leg, at least at their inner end in one run at an acute angle or parallel to the U-web, the needle strip or the needle carrier at a distance corresponding to the spacing of the grooves laterally having cams which engage in the grooves when the needle strip is inserted.

Diese Nuten am Nadelträger und die Nocken am Nadelstreifen lassen sich unter einmaligem Aufwand vergleichsweise leicht herstellen. Die dadurch entstehenden Mehrkosten stehen in keinem Verhältnis zu den Einsparungen, die sich beim Gebrauch solcher Nadelstreifenbefestigungen einstellen. Diese Verbindung kann ohne zusätzliche Hilfsmittel hergestellt und bei Bedarf schnell wieder gelöst werden. Ein Befestigungsmittel wie Lötzinn, Kunststoffkleber od.dgl. entfällt ebenso ersatzlos wie die bei diesen Befestigungen notwendige Erwärmung des Nadelträgers. Da die Nadeistreifen innerhalb der Maschine in Längsrichtung im allgemeinen festliegen, besteht bei Anwendung der erfindungsgemässen Massnahme keine Gefahr des unbeabsichtigten Lösens, da hierzu eine Längsverschiebung des Nadelstreifens gegenüber dem Nadelträger erforderlich wäre.These grooves on the needle carrier and the cams on the pinstrip are comparatively easy to produce with a single effort. The resulting additional costs are disproportionate to the savings that arise when using such pinstripe fasteners. This connection can be established without additional aids and quickly released again if necessary. A fastener such as solder, plastic adhesive or the like. is also no longer necessary, as is the need to heat the needle carrier with these fastenings. Since the needle strips are generally fixed in the longitudinal direction within the machine, there is no risk of unintentional loosening when the measure according to the invention is used, since this would require a longitudinal displacement of the needle strip relative to the needle carrier.

Der einzelne Nadelstreifen lässt sich mit seinen Nocken leicht in die entsprechenden Nuten des Nadelträgers einschieben und erhält am Ende der Nut seinen vorgesehenen festen Sitz. Die Anzahl der erforderlichen Nuten des U-förmigen Nadelträgers und Nocken des Nadelstreifens richtet sich nach den festigkeitsmässigen Erfordernissen des Einzelfalls. Die Nocken können bei der Herstellung des Nadelstreifens im Wege des Tiefziehens angebracht werden. Es ist aber auch möglich, die Nokken stoffschlüssig an den Nadelstreifen anzuformen, wenn dieser nämlich aus einem Kunstharz-Formkörper besteht.The individual pinstrip can be easily inserted with its cams into the corresponding grooves of the needle carrier and gets its intended firm fit at the end of the groove. The number of grooves required for the U-shaped needle carrier and cams of the pinstrip depends on the strength requirements of the individual case. The cams can be attached by deep drawing during the manufacture of the pinstrip. However, it is also possible to form-fit the cams to the pinstrip if this consists of a synthetic resin molded body.

Die Erfindung lässt eine Reihe von Alternativen in der Gestaltung der Befestigungselemente zu. So können in weiterer Ausgestaltung die Nuten einen vom Schenkelende ausgehenden, etwa senkrecht zum U-Steg des Nadelträgers verlaufenden Abschnitt und einen daran anschliessenden spitzwinklig zum U-Steg verlaufenden Endabschnitt aufweisen. Eine andere Ausführungsform sieht vor, dass sich an den senkrecht verlaufenden Abschnitt ein parallel zum U-Steg des Nadelträgers verlaufender Endabschnitt anschliesst. In jedem Fall werden die Nadelstreifen mit ihren Nocken in dem spitzwinklig bzw. quer verlaufenden Abschnitt der Nut des Nadelträgers zuverlässig gehalten.The invention allows a number of alternatives in the design of the fasteners. In a further embodiment, the grooves can have a section extending from the leg end, approximately perpendicular to the U-web of the needle carrier, and an adjoining end section running at an acute angle to the U-web. Another embodiment provides that the vertically extending section is adjoined by an end section running parallel to the U-web of the needle carrier. In any case, the pin strips with their cams are reliably held in the acute-angled or transverse section of the groove of the needle carrier.

Es liegt im Bereich der Erfindung, dass der Übergang von dem etwa senkrecht verlaufenden Abschnitt in den spitzwinklig oder parallel verlaufenden Endabschnitt bogenförmig oder winkelig, vorzugsweise dann rechtwinklig, ausgebildet ist.It is within the scope of the invention that the transition from the approximately perpendicular section to the acute-angled or parallel end section is arched or angled, preferably then at right angles.

Eine andere Abwandlung der Erfindung besteht darin, dass von einem etwa senkrecht zum U-Steg verlaufenden äusseren Abschnitt der Nut mindestens zwei parallel übereinander angeordnete innere Endabschnitte ausgehen.Another modification of the invention exists in that at least two inner end sections arranged parallel to one another extend from an outer section of the groove running approximately perpendicular to the U-web.

Da auch bei dieser erfindungsgemässen Art der Befestigung gewisse Toleranzen unvermeidlich sind, andererseits ein fester Sitz ohne Zuhilfenahme zusätzlicher Klemmelemente erreicht werden soll, sieht die Erfindung vor, die Tiefe der Nut in ihrem Endabschnitt laufend abnehmen zu lassen. Die Nut wird also zu ihrem Ende hin flacher. Damit erfährt der in der Nut geführte Nocken einen zunehmenden Anzug, der den Nadelstreifen an die gegenüberliegende Wandseite des U-förmigen Nadelträgers presst. Der gleiche Effekt ergibt sich aber auch dann, wenn die Breite der Nut in ihrem Endabschnitt laufend abnimmt, so dass der in der Nut geführte Nocken des Nadelstreifens, wenn dieser in der Nutvorwärtsgeschoben wird, sich zunehmend von dem Nutgrund abhebt und damit eine seitliche Verschiebung des Nadelstreifens bewirkt.Since certain tolerances are unavoidable with this type of fastening according to the invention, on the other hand, a tight fit is to be achieved without the aid of additional clamping elements, the invention provides for the depth of the groove in its end section to be continuously reduced. The groove becomes flatter towards the end. As a result, the cam guided in the groove experiences an increasing tightening, which presses the pinstripe against the opposite wall side of the U-shaped needle carrier. The same effect also results when the width of the groove continuously decreases in its end section, so that the cam of the needle strip guided in the groove, when it is pushed forward in the groove, increasingly stands out from the groove base and thus a lateral displacement of the Pinstripe causes.

Erfindungsgemäss weist die Nut einen dem Nockenprofil etwa entsprechenden Querschnitt auf. Der Nockenquerschnitt bzw. das Nockenprofil sind vorzugsweise etwa halbkreisförmig oder dreieckig ausgebildet.According to the invention, the groove has a cross section approximately corresponding to the cam profile. The cam cross section or the cam profile are preferably approximately semicircular or triangular.

Gemäss der Erfindung können auch an beiden Seiten des Nadelstreifens Nocken und an beiden U-Schenkeln des als Nadelträger bezeichneten Maschinenelements Nuten angeordnet sein. Diese an beiden Seiten angeordneten Nocken bzw. Nuten sind zweckmässig gegeneinander versetzt. Die Erfindung umfasst auch die Umkehrung der Anordnung dahingehend, dass die Nocken am Nadelträger und die die Nocken aufnehmenden Nuten im Nadelstreifen angeordnet sind. Um die Nuten in den Innenseiten der U-Schenkel des Nadelträgers anbringen zu können, kann der Nadelträger in dem den Nuten gegenüberliegenden U-Schenkel je Nut ein Fenster aufweisen. Auf diese Weise lässt sich der zum Herstellen der Nuten erforderliche Fräsvorgang auch bei engsteh Raumverhältnisssen ohne weiteres durchführen. Natürlich ist auch der Zugang zum U-Hohlraum von der Öffnungsseite her möglich. Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung einiger bevorzugter Ausführungsformen der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

  • Fig. 1 einen Nadelträger mit eingesetztem Nadelstreifen, abgebrochen in Seitenansicht und
  • Fig. 2 im Schnitt nach Linie 11-11 in Fig. 1;
  • Fig. 3 die Anordnung nach Fig. 1 vor dem Einsetzen des Nadelstreifens bei einer etwas abgewandelten Ausführungsform und
  • Fig. 4 einen Schnitt etwa nach Linie IV-IV in Fig. 3;
  • Fig. 5 eine abgebrochene und teilweise aufgebrochene Aufsicht auf den Nadelträger und
  • Fig. 6 einen Schnitt nach Linie VI-VI in Fig. 5;
  • Fig. 7, 8, 9, 10 u. 11 verschiedene Abwandlungen der Ausbildung des Nadelstreifens in perspektivischer Darstellung;
  • Fig. 12 eine aufgebrochene Darstellung des Nadelträgers mit der Nut;
  • Fig. 13 eine hierzu abgewandelte und
  • Fig. 14 eine weitere Ausführungsform der Nut.
According to the invention, cams can also be arranged on both sides of the pinstrip and grooves can be arranged on both U-legs of the machine element referred to as the pin carrier. These cams or grooves arranged on both sides are expediently offset from one another. The invention also includes the reversal of the arrangement in that the cams on the needle carrier and the grooves receiving the cams are arranged in the pinstripe. In order to be able to make the grooves in the inner sides of the U-legs of the needle carrier, the needle carrier can have a window in the U-legs opposite the grooves for each groove. In this way, the milling process required to produce the grooves can be carried out without difficulty even in the most confined spaces. Of course, access to the U-cavity from the opening side is also possible. Further features, details and advantages of the invention will become apparent from the following description of some preferred embodiments of the invention and from the drawing. Here show:
  • Fig. 1 shows a needle carrier with inserted pinstrip, broken in side view and
  • Fig. 2 in section along line 11-11 in Fig. 1;
  • Fig. 3 shows the arrangement of FIG. 1 before the insertion of the pinstrip in a slightly modified embodiment and
  • 4 shows a section approximately along line IV-IV in FIG. 3;
  • Fig. 5 is a broken and partially broken top view of the needle carrier and
  • Fig. 6 is a section along line VI-VI in Fig. 5;
  • 7, 8, 9, 10 u. 11 different modifications of the formation of the pinstripe in perspective;
  • 12 shows a broken-away representation of the needle carrier with the groove;
  • Fig. 13 a modified and
  • Fig. 14 shows another embodiment of the groove.

In der mit einer Vielzahl von Nadeln 1 besetzten Textilmaschine sind in einer den Nadelreihen entsprechenden Anzahl hier als Nadelträger 2 bezeichnete Maschinenelemente gelagert, die einen U-förmigen Querschnitt aufweisen und aus den beiden U-Schenkeln 3 u. 4 sowie dem diese verbindenden U-Steg 5 bestehen. Der Hohlraum 6 des Nadelträgers 2 dient zur Aufnahme eines Nadelstreifens 7, in welchem eine bestimmte Anzahl von Nadeln 1 in einem exakt vorbestimmten Abstand voneinander fixiert sind. Ein solcher Nadelstreifen 7 kann eine sehr unterschiedliche Gestaltung aufweisen. Er ist vorgefertigt und wird in seiner Gesamtheit in den in der Textilmaschine befestigten Nadelträger 2 eingesetzt und seinerseits darin fest verankert.In the textile machine equipped with a large number of needles 1, machine elements are stored in a number corresponding to the rows of needles, here referred to as needle carrier 2, which have a U-shaped cross-section and are made from the two U-legs 3 u. 4 and the connecting U-web 5 exist. The cavity 6 of the needle carrier 2 serves to receive a needle strip 7, in which a certain number of needles 1 are fixed at a precisely predetermined distance from one another. Such a pinstripe 7 can have a very different design. It is prefabricated and is used in its entirety in the needle carrier 2 fastened in the textile machine and in turn firmly anchored therein.

Zu diesem Zweck weist der Nadelstreifen 7 in einem Abstand x voneinander und in Fig. 1 und 3 in gleicher Höhe angeordnete Nocken 8 auf, die etwa kegelförmige Gestalt aufweisen. Ist, wie bei den Ausführungsformen nach den Fig. 7, 8, 10 u. 11, der Nadelstreifen 7 unter Verwendung einer winkelförmigen Schiene 9 oder einer U-förmigen Schiene 10 ausgebildet, so können die Nocken 8, 8' beispielsweise durch Tiefziehen in der entsprechenden Schiene 9 bzw. 10 ausgeprägt werden. Weist hingegen der Nadelstreifen 7, wie bei der Ausführungsform nach Fig. 9, einen Kunstharz-oder Kunststoffkörper 11 auf, so sind die Nocken 8" einstückig an diesen angeformt.For this purpose, the needle strip 7 has cams 8 which are arranged at a distance x from one another and in FIGS. 1 and 3 at the same height and which have an approximately conical shape. Is, as in the embodiments of FIGS. 7, 8, 10 u. 11, the pinstrip 7 is formed using an angular rail 9 or a U-shaped rail 10, the cams 8, 8 'can be formed, for example, by deep drawing in the corresponding rail 9 or 10. If, on the other hand, the pinstripe 7 has a synthetic resin or plastic body 11, as in the embodiment according to FIG. 9, the cams 8 ″ are integrally formed on it.

Der U-förmige Nadelträger 2 weist in einer der Anzahl der Nocken 8, 8', 8" des Nadelstreifens 7 entsprechenden Zahl und in dem dort verwendeten Abstand x zwischen den Nocken 8 eine Reihe von Nuten 12 auf, die in die Innenseite des Schenkels 4 des Nadelträgers 2 eingefräst sind. Diese Nuten 12 bestehen aus einem am freien Ende 13 des Schenkels 4 ausmündenden Abschnitt 14, der, mit Ausnahme der Ausführungsform nach Fig. 14, etwa senkrecht zum U-Steg 5 verläuft. An diesen Abschnitt 14 schliesst sich dann über einen Bogen 15 (s. Fig. 12) oder im rechten Winkel 16 oder im stumpfen Winkel 17 (s. Fig. 13) mindestens ein Endabschnitt 18 bzw. 18' an, der bei den Ausführungsformen nach den Fig. 1-6 u. 12 etwa parallel zum U-Steg 5 des Nadelträgers 2 verläuft. Bei der Ausführungsform nach Fig. 13 verlaufen zwei parallel übereinanderliegende Endabschnitte 18' im spitzen Winkel dazu.The U-shaped needle carrier 2 has, in a number corresponding to the number of cams 8, 8 ', 8 "of the pinstrip 7 and in the distance x used there between the cams 8, a series of grooves 12 which extend into the inside of the leg 4 of the needle carrier 2. These grooves 12 consist of a section 14 opening out at the free end 13 of the leg 4, which, with the exception of the embodiment according to Fig. 14, extends approximately perpendicular to the U-web 5. This section 14 then adjoins via an arc 15 (see FIG. 12) or at a right angle 16 or at an obtuse angle 17 (see FIG. 13) to at least one end section 18 or 18 ', which in the embodiments according to FIGS. 1-6 u 12. Runs approximately parallel to the U-web 5 of the needle carrier 2. In the embodiment according to FIG.

Die Ausführungsform nach Fig. 14 tässt eine Lösung erkennen, bei der die gesamte Nut 12' von dem freien Ende 13 des U-Schenkels 4 aus in gerader Linie und im spitzen Winkel y zum U-Steg 5 verläuft. Der Querschnitt dieser Nuten 12' entspricht, abgesehen von bestimmten Toleranzen, demjenigen der Nocken 8 des Nadelstreifens 7.The embodiment according to FIG. 14 shows a solution in which the entire groove 12 ′ runs from the free end 13 of the U-leg 4 in a straight line and at an acute angle y to the U-web 5. Apart from certain tolerances, the cross section of these grooves 12 ′ corresponds to that of the cams 8 of the pinstrip 7.

Die Ausführungsform nach Fig. 8 des Nadelstreifens 7 mit jeweils zwei übereinander befindlichen Nocken 8 entspricht der Ausführungsform des Nadelträgers 2 gemäss Fig. 13, bei der sich an den Abschnitt 14 der Nut 12 zwei schräg verlaufende, parallel übereinander angeordnete Endabschnitte 18 anschliessen, die jeder einen der Nokken 8' aufnehmen.The embodiment according to FIG. 8 of the needle strip 7, each with two cams 8 one above the other, corresponds to the embodiment of the needle carrier 2 according to FIG. 13, in which section 14 of the groove 12 is connected by two obliquely running, parallel superimposed end sections 18 which each receive one of the cams 8 '.

Die Fig. 9 zeigt eine Ausführungsform mit schräg übereinander versetzt angeordneten Nokken 8", die, was im einzelnen nicht wiedergegeben, aber selbstverständlich ist, eine entsprechende Nutausbildung des zugehörigen Nadelstreifens 7 verlangt. Die Fig. 5 zeigt, dass der Boden 19 des Endabschnitts 18 der Nut 12 zum Ende hin zur Innenseite des Schenkels 4 ausläuft, d.h., dass die Nut zunehmend flacher wird.FIG. 9 shows an embodiment with cams 8 "arranged obliquely one above the other, which, which is not reproduced in detail but is self-evident, requires a corresponding groove formation of the associated pinstrip 7. FIG. 5 shows that the bottom 19 of the end section 18 the groove 12 ends at the end towards the inside of the leg 4, ie the groove becomes increasingly shallower.

Beim Einsetzen eines Nadelstreifens 7 in den U-förmigen Nadelträger 2 werden gemäss Fig. 3 die Nocken 8 in Übereinstimmung mit den Nuten 12 des Nadelträgers 2 gebracht, so dann in die Abschnitte 14 bis zu deren Ende eingeführt und dann weiter bis in die Endabschnitte 18 verschoben, bis die Nocken 8 zum Endanschlag oder zum festen Anzug gelangen. Es genügt dann, den Hohlraum 6 des Nadelträgers 2 seitlich zu verschliessen, so dass der Nadelstreifen 7 sich seitlich nicht mehr verschieben kann. Der Ausbau erfolgt in der umgekehrten Reihenfolge.3, the cams 8 are brought into correspondence with the grooves 12 of the needle carrier 2, then inserted into the sections 14 to the end thereof and then further into the end sections 18 moved until the cams 8 reach the end stop or a tight fit. It is then sufficient to close the cavity 6 of the needle carrier 2 laterally, so that the needle strip 7 can no longer shift laterally. The removal takes place in the reverse order.

Claims (9)

1. Adeviceforsecuring a needle strip (7) in a U-shaped needle carrier (2) on needle carrying textile machines by means of a projection and groove connection, characterised in that there are provided in at least one of the sides (4) of the U of the needle carrier (2), or in the needle strip (7), a plurality of spaced, adjacent, parallel grooves (12; 12') which, when arranged in the needle carrier (2), proceed from the inner space (6) of the U and extend to the free end (13) of said side thereof, said grooves, at least at their inner ends, extending at an acute angle to or parallel to the base (5) of the U; and that the needle strip (7), or the needle carrier (2) respectively, comprises lateral projections (8; 8'; 8") spaced at a distance (x) corresponding to the spacing (z) between the grooves (12), the arrangement being such that said projections engage in the grooves (12) upon insertion of the needle strip (7).
2. A device according to Claim 1, characterised in thatthe grooves (12) comprise a section (14) starting from the said end (13) and extending substantially at right angles to the base (5) of the U, and an end section (18) connecting with the section (14) and extending at right angles to the base (5) of the U.
3. A device according to Claim 1 characterised in thatthe grooves (12) comprise a section (14) starting from the said end (13) and extending substantially at right angles to the base (5) of the U, and an end section (18) connecting with the section (14) and extending parallel to the base (5) of the U.
4. A device according to any one of Claims 1 to 3, characterised in that the transition from the substantially perpendicularly extending section (14) to the acute angled or parallel extending end section (18) is formed as a bend, or is angle shaped.
5. A device according to Claim 1, characterised in thatat least two parallel inner end sections (18') arranged one above the other commence from a single outer section (14) of the groove (12) extending approximately perpendicular to the base (5) of the U.
6. A device according to any one of Claims 1 to 5, characterised in that the depth of the groove (12) progressively reduces in its end section (18; 18').
7. A device according to any one of Claims 1 to 5, characterised in that the width of the groove (12) progresively reduces in its end section (18; 18').
8. A device according to any one of Claims 1 to 7, characterised in thatthe groove (12) has a cross section substantially corresponding to the profile of the projection.
9. A device according to any one of Claims 1 to 8, characterised in that the cross section or profile of the projection is approximately semi-circular or triangular.
EP80100125A 1979-02-20 1980-01-11 Device for securing a row of needles in a u-section needle carrier of a textile machine using needles Expired EP0014831B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100125T ATE401T1 (en) 1979-02-20 1980-01-11 DEVICE FOR ATTACHING A PINSTRIP IN A U-SHAPED NEEDLE CARRIER ON NEEDLE-CARRYING TEXTILE MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2906544A DE2906544C3 (en) 1979-02-20 1979-02-20 Clamping attachment for pin strips in a U-shaped recess of a needle bar or a needle roller
DE2906544 1979-02-20

Publications (2)

Publication Number Publication Date
EP0014831A1 EP0014831A1 (en) 1980-09-03
EP0014831B1 true EP0014831B1 (en) 1981-10-28

Family

ID=6063438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100125A Expired EP0014831B1 (en) 1979-02-20 1980-01-11 Device for securing a row of needles in a u-section needle carrier of a textile machine using needles

Country Status (6)

Country Link
EP (1) EP0014831B1 (en)
AT (1) ATE401T1 (en)
CS (1) CS208797B2 (en)
DD (1) DD149239A5 (en)
DE (1) DE2906544C3 (en)
SU (1) SU973031A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336326A1 (en) * 1983-10-06 1985-04-18 Drei-S-Werk Präzisionswerkzeuge GmbH & Co Fertigungs-KG, 8540 Schwabach NEEDLE HOLDER WITH NEEDLE STRIPES FOR TEXTILE MACHINES
DE3438133A1 (en) * 1984-10-18 1986-04-30 Staedtler & Uhl, 8540 Schwabach OPEN-END SPINNING MACHINE
GB2182364A (en) * 1985-10-17 1987-05-13 James Francis Moore Faller bars
IT1234009B (en) * 1989-01-05 1992-04-23 Giuseppe Gasparotto BAR FOR COMBS REPORTED FOR TEXTILE FIBER IRONERS.
DE4033262A1 (en) * 1990-10-19 1992-04-23 Staedtler & Uhl PINSTRIPE STRAP

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1068847A (en) * 1952-09-12 1954-07-01 Strips for the textile industry with interchangeable linings
FR1126703A (en) * 1955-06-25 1956-11-29 Schlumberger Cie N Barrette, with attached needle holder, for stretching system
FR1139521A (en) * 1955-12-30 1957-07-02 Stewart & Sons Wm R Improvements to combers and their combs
US2985923A (en) * 1958-04-02 1961-05-30 Gerhard A Kohler Gill bar for gill boxes
US3270996A (en) * 1965-12-01 1966-09-06 United Carr Inc Coat hook and attachment
DE2002020C3 (en) * 1970-01-17 1979-01-25 Staedtler & Uhl, 8540 Schwabach Attachment of needle carriers to flat combing machines, needle roller drawing units or hackling devices
DE2613210C3 (en) * 1976-03-27 1979-02-01 Staedtler & Uhl, 8540 Schwabach Needle roller with pinstripe

Also Published As

Publication number Publication date
SU973031A3 (en) 1982-11-07
CS208797B2 (en) 1981-09-15
DE2906544C3 (en) 1981-12-03
DE2906544A1 (en) 1980-08-21
EP0014831A1 (en) 1980-09-03
DE2906544B2 (en) 1981-03-12
ATE401T1 (en) 1981-11-15
DD149239A5 (en) 1981-07-01

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