EP2019157B1 - Narrow cropped heald - Google Patents

Narrow cropped heald Download PDF

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Publication number
EP2019157B1
EP2019157B1 EP07014643A EP07014643A EP2019157B1 EP 2019157 B1 EP2019157 B1 EP 2019157B1 EP 07014643 A EP07014643 A EP 07014643A EP 07014643 A EP07014643 A EP 07014643A EP 2019157 B1 EP2019157 B1 EP 2019157B1
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EP
European Patent Office
Prior art keywords
shaft
heald
width
end eyelet
eyelet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP07014643A
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German (de)
French (fr)
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EP2019157A1 (en
Inventor
Julius Bächtold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Groz Beckert KG
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Groz Beckert KG
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Filing date
Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP07014643A priority Critical patent/EP2019157B1/en
Priority to DE502007004263T priority patent/DE502007004263D1/en
Priority to ES07014643T priority patent/ES2347696T3/en
Priority to JP2008184873A priority patent/JP2009030223A/en
Priority to KR1020080069872A priority patent/KR101050972B1/en
Priority to CN2008101447765A priority patent/CN101353841B/en
Priority to US12/219,749 priority patent/US7717140B2/en
Publication of EP2019157A1 publication Critical patent/EP2019157A1/en
Application granted granted Critical
Publication of EP2019157B1 publication Critical patent/EP2019157B1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/04—Metal healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/15—Cord heddle making

Definitions

  • the invention relates to a flat band heddle with end eyelet, shaft and thread eye, made of a metal band section.
  • Healds for example, made of flat steel strip in a punching process. It will be removed from a metal band blanks games to obtain the desired outer shape of the heald. The removed parts are waste, but this contributes significantly to the material consumption.
  • adjacent healds on a heald are often cranked away in opposite directions from each other. This creates an offset between the thread eyes of adjacent healds with respect to the warp thread longitudinal direction to facilitate the passage of warp threads between the healds.
  • Paired healds with different staggered shafts are from the US Pat. No. 7,204,274 B2 and the CH 468 489 and the DE 10 2005 033 175 B3 known. These heddles each have a straight edge extending along the shaft and the end eyelet. The achievable gap between the shafts of adjacent healds is limited.
  • healds on flat material each forming a relatively narrow sheet metal strip.
  • the end loops are symmetrically connected to the shank, which may be provided with a bend to define an enlarged yarn passage between adjacent healds.
  • the healds are made of a metallic sheet.
  • the shafts of the healds are designed so that there is an enlarged thread passage space between adjacent healds.
  • a heddle which is made of a narrow sheet metal strip, have been prepared in the thread eye and end eyelet in slotted sections by widening.
  • the shaft of such a heddle can be formed cranked.
  • the shank On both sides of the thread eye, the shank has been flattened in an embossing process in order to bring about increased elasticity in warp thread longitudinal direction.
  • Flachstahlweblitzen are known with annularly closed end eyelets, starting from which the flat steel material tapers towards a shank on both sides. Immediately after the end loop the shaft has a crank.
  • the Flachbandweblitze invention consists of a metal strip portion whose original width corresponds to the width at the End Harbor. Material has been removed along the shaft, for example in a punching process or the like. Between the end eyelet and the shaft, a transition section is formed, in which the width is reduced from the end eyelet width to the shaft width.
  • the heald has a straight edge on the end eyelet which, at some distance from the end eyelet, has either a portion leading away from a longitudinal centerline of the heald, at either the transitional portion or on the shaft, in a kink or bow.
  • the outer edge of the shaft is offset by an amount X.
  • the center of the thread eye is preferably approximately on a line connecting the outer edges of the end eyelets.
  • Such a heald can be made of a metal strip whose width is not greater than the width of the end eyelets. Nevertheless, in KettfadenlCodescardi a large offset between the thread eye and Endulate can be achieved.
  • the shaft is subsequently arranged offset relative to the end eyelets.
  • This after cutting or punching the heald not yet present but subsequently generated offset of the shaft against the end eyelets is achieved by a plastic deformation of the transition region or a portion of the shaft within said plane. This is done by means of a corresponding embossing process. But it is also possible to integrate the punching and embossing into one step and to perform in a common tool. Again, there is a plastic deformation of the shaft or transition region to form the crank or the offset.
  • FIG. 1 For example, a ribbon hank blank 1 is illustrated that has been stamped from a width B metal strip. This width B is lower than usual for punched flat band healds.
  • the flat-heddle web blank 1 has two end loops 2, 3, between which a shaft 4 is provided. This connects via transition areas 5, 6 to the end eyelets.
  • openings 7, 8 have been introduced into the end regions of the sheet-metal strip section in order to form the end eyelets 2, 3. These openings may have a closed edge or, as shown, also a broken edge.
  • O-end eyelets such as for example FIG. 8
  • C-end eyelets (as in Figure 1 to 6 )
  • J-end eyelets as in FIG. 7 ).
  • the flat-band heddle blank 1 has a straight edge 9 which extends from the upper end of the upper end eyelet 7 to the lower end of the lower end eyelet 8.
  • This straight edge 9 corresponds to a side edge of the original metal band section. From the opposite straight edge, however, only two sections 10, 11 are left at the end eyes 2, 3.
  • material was removed from the metal band portion (e.g., in a punching or cutting operation), thereby forming inward edge portions 12, 13 and an inwardly offset edge portion 14.
  • the shaft 4 has also been provided with a thread eye 15, in which a corresponding opening has been introduced at the desired location. Further openings 16, 17 can be provided on the end eyes 2, 3 or in the transitional areas 5, 6.
  • FIG. 12 illustrates another ribbon heald bladder 18. While in the flat ribbon heald frame 1, the straight continuous edge 9 is located on the side of the edge interruption of the openings 7, 8, this continuous edge 9 in the flat-heddle wire blank 18 after FIG. 2 arranged on the other side of the blank and thus extends over the closed edges of the end loops 2, 3 continuously away.
  • the sections 10, 11 are arranged on the sides of the end loops 2, 3, at which the edge thereof is interrupted. The same applies to the edge portions 12, 13, 14. Otherwise, the description of the flat-heddle wire blank 1 applies correspondingly to the heald wire 18 based on the same reference numerals.
  • the heddle blanks 1, 18 therefore undergo a further processing step, for example an embossing step, in the course of which they undergo, for example, an offset away from one another in the transitional areas 5, 6. They are deformed within the plane defined by the end eyelets 2, 3 and the shaft 4 so that the thread eye 15 is located on an imaginary line 19, as the former position of the edge 9 marked.
  • This imaginary line 19 connects remaining portions 9a, 9b of the edge 9, which are still present at the end eyelets 2, 3.
  • the thread eye 15 lies with its center on the line 19 or is beyond this outwards, ie in FIG. 4 bent to the left. It is arranged in the middle section 9c of the former edge 9. This section 9c is at a distance X to the Line 19.
  • the distance X is preferably at least as large as half the width B1 of the shaft 4 in the region of the thread eye 15.
  • the edge 9 is divided in the forming process into sections, namely the sections 9a, 9b, which lie on the line 19 and pass with an outwardly directed bend or arc into sections 9d, 9e which lead the edge away from the line 19 and merge into the central section 9c, which in turn is straight.
  • the ribbon heald 20 produced in this way requires a smaller amount of material for its production than healds punched out of a correspondingly wider metal band section. Compared to healds with flared end loops, there are fewer local material deformations. The choice of material can be optimized.
  • a complementary flat ribbon heald 21 can be produced from the ribbon heald 18. Again, a forming process is carried out, during which the center of the shaft 4 is brought to the line 19, which marks the former course of the edge 9. The edge 9 is thereby divided into the sections 9a, 9b, 9c, 9d, 9e.
  • the previous description of the ribbon heald wire blank 18 and the flatweave heald 20 applies correspondingly on the basis of the same reference numerals.
  • FIG. 6 Be the flat-band heddles 20, 21, such FIG. 6 illustrates, suitably superimposed, as they are lined up on mounting rails, it turns out that the shanks 4 are bent away from each other. It therefore arises in the field of thread eyes 15 between the edge portions 14 of the shafts 4, a distance R, which is substantially greater than the distance D according to FIG. 3 ,
  • the distance R is preferably as large as half the width B1 of the shaft 4, ideally as large as the width B1 of the shaft 4.
  • FIG. 7 illustrates a modified heald pair 22 with J-shaped end eyelets 2, 3. Incidentally, the above statements apply accordingly on the basis of the same reference numerals.
  • the offset of the portion 9c of the edge 9 in all previous embodiments is arranged on the transitional sections 5, 6, it is also possible to lay this offset in the region of the shaft 4.
  • the transition region 5 reduces the width of the heald from the greater width B in the region of the end eyelet 2 to the smaller width A of the shaft 4
  • the straight portion 9a of the edge 9 extends both over the end eyelet 2 and over the transition region 5
  • the adjoining shank 4 is bent, so that the section 9d of the edge 9 lies in the region of the shank 4. Again, immediately adjoins the straight portion 9a via a bow or a bend of the outwardly facing portion 9d.
  • the healds according to the invention consist of a metal strip section of width B which is narrower than the total width B + X required for the flat stranded strand 20.
  • the flat strip strand 20 has a substantially unprocessed, in any case uncircumcised, originating from the metal strip portion edge 9 and an edge 10, 11, 12, 13, 14 which has been generated in the region of the shaft 4 and the transition sections 5, 6 by trimming the metal strip portion ,
  • An outward turn of the shaft 4 creates an increased distance R between two associated oppositely cranked flat-band healds of a heald pair 23, to which two oppositely cranked flat-band healds 20, 21 belong.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Adornments (AREA)
  • Slide Fasteners (AREA)

Description

Die Erfindung betrifft eine Flachband-Weblitze mit Endöse, Schaft und Fadenauge, hergestellt aus einem Metallbandabschnitt.The invention relates to a flat band heddle with end eyelet, shaft and thread eye, made of a metal band section.

Weblitzen werden beispielsweise aus flachem Stahlband in einem Stanzvorgang hergestellt. Dabei werden von einem Metallbandzuschnitt Partien entfernt, um die gewünschte Außenform der Weblitze zu erhalten. Die entfernten Teile sind Abfall, der aber zum Materialverbrauch erheblich beiträgt.Healds, for example, made of flat steel strip in a punching process. It will be removed from a metal band blanks games to obtain the desired outer shape of the heald. The removed parts are waste, but this contributes significantly to the material consumption.

Es ist manchmal erforderlich, Weblitzen mit einer Kröpfung zu versehen, wobei insbesondere benachbarte Weblitzen auf einen Webschaft häufig in entgegen gesetzten Richtungen voneinander weg gekröpft sind. Dadurch entsteht bezüglich der Kettfadenlängsrichtung ein Versatz zwischen den Fadenaugen benachbarter Weblitzen, um den Durchgang von Kettfäden zwischen den Weblitzen zu erleichtern. Paarige Weblitzen mit unterschiedlich versetzten Schäften sind aus der US 7 204 274 B2 und der CH 468 489 und der DE 10 2005 033 175 B3 bekannt. Diese Weblitzen weisen jeweils eine sich entlang des Schafts und der Endöse erstreckende gerade Kante auf. Der erzielbare Zwischenraum zwischen den Schäften benachbarter Weblitzen ist begrenzt.It is sometimes necessary to provide healds with a bend, in particular adjacent healds on a heald are often cranked away in opposite directions from each other. This creates an offset between the thread eyes of adjacent healds with respect to the warp thread longitudinal direction to facilitate the passage of warp threads between the healds. Paired healds with different staggered shafts are from the US Pat. No. 7,204,274 B2 and the CH 468 489 and the DE 10 2005 033 175 B3 known. These heddles each have a straight edge extending along the shaft and the end eyelet. The achievable gap between the shafts of adjacent healds is limited.

Weiter ist beispielsweise aus der US 1 545 904 die Herstellung von Weblitzen auf Flachmaterial bekannt, das jeweils einen relativ schmalen Blechstreifen bildet. Die Endösen schließen symmetrisch an den Schaft an, der mit einer Kröpfung versehen sein kann, um zwischen benachbarten Weblitzen einen vergrößerten Fadendurchgangsraum festzulegen.Next is for example from the US 1,545,904 the production of healds on flat material known, each forming a relatively narrow sheet metal strip. The end loops are symmetrically connected to the shank, which may be provided with a bend to define an enlarged yarn passage between adjacent healds.

Des Weiteren ist aus der US 2 973 786 ein Weblitzensatz bestehend aus unterschiedlich gekröpften Weblitzen bekannt, wobei die Weblitzen aus einem metallischen Flachmaterial bestehen. Im Anschluss an die Endösen sind die Schäfte der Weblitzen so gekröpft ausgebildet, dass zwischen benachbarten Weblitzen ein vergrößerter Fadendurchgangsraum vorhanden ist.Furthermore, from the US 2,973,786 a heddle set consisting of different cranked healds known, the healds are made of a metallic sheet. Following the end eyelets, the shafts of the healds are designed so that there is an enlarged thread passage space between adjacent healds.

Schließlich ist aus der US 644 371 eine Weblitze bekannt, die aus einem schmalen Blechstreifen hergestellt ist, in dem Fadenauge und Endöse in geschlitzten Abschnitten durch Aufweiten hergestellt worden sind. Außerdem kann der Schaft einer solchen Weblitze gekröpft ausgebildet sein. Zu beiden Seiten des Fadenauges ist der Schaft in einem Prägeprozess abgeflacht worden, um eine erhöhte Elastizität in Kettfadenlängsrichtung zu bewirken.Finally, out of the US 644,371 a heddle is known, which is made of a narrow sheet metal strip, have been prepared in the thread eye and end eyelet in slotted sections by widening. In addition, the shaft of such a heddle can be formed cranked. On both sides of the thread eye, the shank has been flattened in an embossing process in order to bring about increased elasticity in warp thread longitudinal direction.

Zwar ist das Herstellen von länglichen Öffnungen durch Schlitzen und Aufweiten ein materialsparendes Verfahren, jedoch setzt es eine relativ starke Materialverformung voraus, was die Materialwahl und die Möglichkeiten der Materialoptimierung einschränkt.Although the production of elongated openings by slitting and widening is a material-saving process, but it requires a relatively strong material deformation, which limits the choice of materials and the possibilities of material optimization.

Aus der DE-A-976 459 sind Flachstahlweblitzen mit ringförmig geschlossenen Endösen bekannt, von denen ausgehend sich das Flachstahlmaterial zu einem Schaft hin beidseits verjüngt. Im unmittelbaren Anschluss an die Endöse weist der Schaft eine Kröpfung auf.From the DE-A-976 459 Flachstahlweblitzen are known with annularly closed end eyelets, starting from which the flat steel material tapers towards a shank on both sides. Immediately after the end loop the shaft has a crank.

Es ist Aufgabe der Erfindung, eine Weblitze und ein zu ihrer Herstellung dienendes rationelles Herstellungsverfahren anzugeben, womit eine materialsparende Herstellung hochleistungsfähiger Weblitzen ermöglicht werden soll.It is an object of the invention to provide a heald and serving for their production rational production process, which is to be made possible a material-saving production of high-performance healds.

Diese Aufgabe wird mit der Flachband-Weblitze nach Anspruch 1, wie auch mit dem Verfahren nach Anspruch 8 gelöst:This object is achieved with the ribbon heddle according to claim 1, as well as with the method according to claim 8:

Die erfindungsgemäße Flachbandweblitze besteht aus einem Metallbandabschnitt, dessen ursprüngliche Breite der Breite an der Endöse entspricht. Entlang des Schafts ist Material entfernt worden, beispielsweise in einem Stanzvorgang oder dergleichen. Zwischen der Endöse und dem Schaft ist ein Übergangsabschnitt ausgebildet, in dem sich die Breite von der Endösenbreite auf die Schaftbreite reduziert. Die Weblitze weist an der Endöse eine gerade Kante auf, die in einigem Abstand zu der Endöse entweder an dem Übergangsabschnitt oder an dem Schaft einen von einer Längsmittellinie der Weblitze in einem Knick oder Bogen weg führenden Abschnitt aufweist. Dadurch ist die Außenkante des Schafts um einen Betrag X versetzt. Die Mitte des Fadenauges liegt vorzugsweise ungefähr auf einer Linie, die die Außenkanten der Endösen miteinander verbindet.The Flachbandweblitze invention consists of a metal strip portion whose original width corresponds to the width at the Endöse. Material has been removed along the shaft, for example in a punching process or the like. Between the end eyelet and the shaft, a transition section is formed, in which the width is reduced from the end eyelet width to the shaft width. The heald has a straight edge on the end eyelet which, at some distance from the end eyelet, has either a portion leading away from a longitudinal centerline of the heald, at either the transitional portion or on the shaft, in a kink or bow. As a result, the outer edge of the shaft is offset by an amount X. The center of the thread eye is preferably approximately on a line connecting the outer edges of the end eyelets.

Eine solche Weblitze lässt sich aus einem Metallstreifen herstellen, dessen Breite nicht größer ist als die Breite der Endösen. Dennoch kann in Kettfadenlängsrichtung ein großer Versatz zwischen Fadenauge und Endöse erreicht werden.Such a heald can be made of a metal strip whose width is not greater than the width of the end eyelets. Nevertheless, in Kettfadenlängsrichtung a large offset between the thread eye and Endöse can be achieved.

Ausgehend von einer zunächst flach ausgebildeten Flachbandweblitze, die vorzugsweise eben, d.h. unverwunden ausgebildet ist und somit deren Endöse, Übergangsabschnitt und Schaft in einer gemeinsamen Ebene, vorzugsweise gegeneinander nicht verdreht angeordnet sind, wird der Schaft nachträglich gegenüber den Endösen versetzt angeordnet. Dieser nach dem Ausschneiden bzw. Ausstanzen der Weblitze noch nicht vorhandene sondern nachträglich erzeugte Versatz des Schafts gegen die Endösen wird durch eine plastische Verformung des Übergangsbereichs oder eines Teils des Schafts innerhalb der genannten Ebene erreicht. Dazu dient ein entsprechendes Prägeverfahren. Es ist aber auch möglich, das Stanzen und Prägen zu einem Schritt zu integrieren und in einem gemeinsamen Werkzeug durchzuführen. Auch hier kommt es zu einer plastischen Verformung an Schaft oder Übergangsbereich zur Ausbildung der Kröpfung bzw. des Versatzes.Starting from an initially flat Flachbandweblitze, preferably flat, ie unbound is formed and thus the end lug, transition portion and shaft are arranged in a common plane, preferably against each other not twisted, the shaft is subsequently arranged offset relative to the end eyelets. This after cutting or punching the heald not yet present but subsequently generated offset of the shaft against the end eyelets is achieved by a plastic deformation of the transition region or a portion of the shaft within said plane. This is done by means of a corresponding embossing process. But it is also possible to integrate the punching and embossing into one step and to perform in a common tool. Again, there is a plastic deformation of the shaft or transition region to form the crank or the offset.

Weitere Einzelheiten vorteilhafter Ausführungsformen der Erfindung ergeben sich aus der Zeichnung, der Beschreibung und Unteransprüchen. Die Beschreibung beschränkt sich auf wesentliche Aspekte der Erfindung und sonstiger Gegebenheiten. Die Zeichnung offenbart weitere Details und ist ergänzend heranzuziehen. Es zeigen:

  • Figur 1 und 2 Flachband-Weblitzen nach dem Ausstanzen, jedoch vor einem Kröpf- bzw. Prägeschritt,
  • Figur 3 die Flachbandlitzenrohlinge nach Figur 1 und 2 übereinander gelegt,
  • Figur 4 und 5 die Flachbandlitzen hergestellt aus den Rohlingen nach Figur 1 und 2 nach einem Prägeschritt,
  • Figur 6 die Flachbandlitzen nach Figur 4 und 5 übereinander gelegt,
  • Figur 7 und 8 alternative Ausführungsformen von Flachband-Weblitzen, jeweils in Veranschaulichung durch zwei zusammengehörige, unterschiedlich gekröpfte übereinander gelegte Weblitzen und
  • Figur 9 eine abgewandelte Ausführungsform einer erfindungsgemäßen Flachband-Weblitze durch Veranschaulichung ihres Endbereichs.
Further details of advantageous embodiments of the invention will become apparent from the drawings, the description and claims. The description is limited to essential aspects of the invention and other circumstances. The drawing reveals more details and is complementary. Show it:
  • FIGS. 1 and 2 Flat band healds after punching, but before a crimping or embossing step,
  • FIG. 3 the flat strip wire blanks after FIGS. 1 and 2 superimposed,
  • FIGS. 4 and 5 the flat strands made from the blanks after FIGS. 1 and 2 after an embossing step,
  • FIG. 6 the flat strands after FIGS. 4 and 5 superimposed,
  • FIGS. 7 and 8 alternative embodiments of ribbon healds, each by way of illustration by two associated, differently cranked superimposed healds and
  • FIG. 9 a modified embodiment of a flat ribbon heald according to the invention by illustrating its end.

In Figur 1 ist ein Flachband-Weblitzenrohling 1 veranschaulicht, der aus einem Metallband der Breite B ausgestanzt worden ist. Diese Breite B ist geringer, als für gestanzte Flachband-Weblitzen sonst üblich. Der Flachband-Weblitzenrohling 1 weist zwei Endösen 2, 3 auf, zwischen denen ein Schaft 4 vorgesehen ist. Dieser schließt über Übergangsbereiche 5, 6 an die Endösen an. Bei der Herstellung des Flachband-Weblitzenrohlings 1 sind zur Ausbildung der Endösen 2, 3 Öffnungen 7, 8 in die Endbereiche des Blechstreifenabschnitts eingebracht worden. Diese Öffnungen können einen geschlossenen Rand oder, wie dargestellt, auch einen unterbrochenen Rand aufweisen. Je nachdem entstehen O-Endösen (wie beispielsweise nach Figur 8) oder C-Endösen (wie nach Figur 1 bis 6) oder J-Endösen (wie nach Figur 7).In FIG. 1 For example, a ribbon hank blank 1 is illustrated that has been stamped from a width B metal strip. This width B is lower than usual for punched flat band healds. The flat-heddle web blank 1 has two end loops 2, 3, between which a shaft 4 is provided. This connects via transition areas 5, 6 to the end eyelets. In the manufacture of the flat-heddle web blank 1, openings 7, 8 have been introduced into the end regions of the sheet-metal strip section in order to form the end eyelets 2, 3. These openings may have a closed edge or, as shown, also a broken edge. Depending on the result, O-end eyelets (such as for example FIG. 8 ) or C-end eyelets (as in Figure 1 to 6 ) or J-end eyelets (as in FIG. 7 ).

Der Flachband-Weblitzenrohling 1 weist eine gerade Kante 9 auf, die sich von dem oberen Ende der oberen Endöse 7 bis zu dem unteren Ende der unteren Endöse 8 erstreckt. Diese gerade Kante 9 entspricht einer Seitenkante des ursprünglichen Metallbandabschnitts. Von der gegenüber liegenden geraden Kante sind jedoch lediglich noch zwei Abschnitte 10, 11 jeweils an den Endösen 2, 3 übrig. In einem dazwischen liegenden Abschnitt, der die Übergangsbereiche 5, 6 und den Schaft 4 beinhaltet, wurde Material von dem Metallbandabschnitt entfernt (z.B. in einem Stanz- oder Schneidevorgang), wodurch einwärts laufende Kantenabschnitte 12, 13 und ein nach innen versetzter Kantenabschnitt 14 entsteht. Der Schaft 4 ist außerdem mit einem Fadenauge 15 versehen worden, in dem eine entsprechende Öffnung an gewünschter Stelle eingebracht worden ist. Weitere Öffnungen 16, 17 können an den Endösen 2, 3 oder in den Übergangsbereichen 5, 6 vorgesehen werden.The flat-band heddle blank 1 has a straight edge 9 which extends from the upper end of the upper end eyelet 7 to the lower end of the lower end eyelet 8. This straight edge 9 corresponds to a side edge of the original metal band section. From the opposite straight edge, however, only two sections 10, 11 are left at the end eyes 2, 3. In an intermediate portion including the transition portions 5, 6 and the shaft 4, material was removed from the metal band portion (e.g., in a punching or cutting operation), thereby forming inward edge portions 12, 13 and an inwardly offset edge portion 14. The shaft 4 has also been provided with a thread eye 15, in which a corresponding opening has been introduced at the desired location. Further openings 16, 17 can be provided on the end eyes 2, 3 or in the transitional areas 5, 6.

Figur 2 veranschaulicht einen weiteren Flachband-Weblitzenrohling 18. Während bei dem Flachband-Weblitzenrohling 1 die gerade durchgehende Kante 9 auf der Seite der Randunterbrechung der Öffnungen 7, 8 liegt, ist diese durchgehende Kante 9 bei dem Flachband-Weblitzenrohling 18 nach Figur 2 auf der anderen Seite des Rohlings angeordnet und erstreckt sich somit über die geschlossenen Ränder der Endösen 2, 3 ununterbrochen hinweg. Die Abschnitte 10, 11 sind an den Seiten der Endösen 2, 3 angeordnet, an denen deren Rand unterbrochen ist. Gleiches gilt für die Kantenabschnitte 12, 13, 14. Ansonsten gilt die Beschreibung des Flachband-Weblitzenrohlings 1 entsprechend für den Weblitzenrohling 18 unter Zugrundelegung gleicher Bezugszeichen. FIG. 2 FIG. 12 illustrates another ribbon heald bladder 18. While in the flat ribbon heald frame 1, the straight continuous edge 9 is located on the side of the edge interruption of the openings 7, 8, this continuous edge 9 in the flat-heddle wire blank 18 after FIG. 2 arranged on the other side of the blank and thus extends over the closed edges of the end loops 2, 3 continuously away. The sections 10, 11 are arranged on the sides of the end loops 2, 3, at which the edge thereof is interrupted. The same applies to the edge portions 12, 13, 14. Otherwise, the description of the flat-heddle wire blank 1 applies correspondingly to the heald wire 18 based on the same reference numerals.

Werden die beiden Weblitzenrohlinge 1, 18 übereinander gelegt, ergibt sich das Bild nach Figur 3. Zwischen den Kantenabschnitten 14 verbleibt ein Abstand D, der relativ gering ist. Zwar können die Weblitzenrohlinge 1, 18 in diesem Zustand bereits als Weblitzen eingesetzt werden, jedoch besteht aufgrund des geringen Abstands D die Gefahr der Verletzung der Kettfäden, die zwischen den Weblitzenrohlingen 1, 18 hindurch laufen müssten.If the two heddle blanks 1, 18 superimposed, the picture follows FIG. 3 , Between the edge portions 14 remains a distance D, which is relatively small. Although the heddle blanks 1, 18 can already be used as healds in this state, due to the small distance D there is the risk of injury to the warp threads which would have to pass between the heddle blanks 1, 18.

Die Weblitzenrohlinge 1, 18 durchlaufen deshalb einen weiteren Bearbeitungsschritt, z.B. einen Prägeschritt, im Verlaufe dessen sie z.B. in den Übergangsbereichen 5, 6 eine auswärts voneinander weg gerichtete Kröpfung erfahren. Dabei werden sie innerhalb der von den Endösen 2, 3 und dem Schaft 4 festgelegten Ebene so deformiert, dass das Fadenauge 15 auf einer gedachten Linie 19 liegt, wie die ehemalige Position der Kante 9 markiert. Diese gedachte Linie 19 verbindet verbleibende Abschnitte 9a, 9b der Kante 9, die an den Endösen 2, 3 noch vorhanden sind. Das Fadenauge 15 liegt mit seiner Mitte auf der Linie 19 oder ist über diese hinaus nach außen, d.h. in Figur 4 nach links gebogen. Es ist im mittleren Abschnitt 9c der ehemaligen Kante 9 angeordnet. Dieser Abschnitt 9c liegt in einem Abstand X zu der Linie 19. Der Abstand X ist dabei vorzugsweise mindestens so groß wie die halbe Breite B1 des Schafts 4 im Bereich des Fadenauges 15. Die Kante 9 wird bei dem Umformvorgang in Abschnitte unterteilt, nämlich die Abschnitte 9a, 9b, die auf der Linie 19 liegen und mit einem auswärts gerichteten Knick oder Bogen in Abschnitte 9d, 9e übergehen, die die Kante von der Linie 19 weg führen und in den mittleren Abschnitt 9c übergehen, der wiederum gerade ist.The heddle blanks 1, 18 therefore undergo a further processing step, for example an embossing step, in the course of which they undergo, for example, an offset away from one another in the transitional areas 5, 6. They are deformed within the plane defined by the end eyelets 2, 3 and the shaft 4 so that the thread eye 15 is located on an imaginary line 19, as the former position of the edge 9 marked. This imaginary line 19 connects remaining portions 9a, 9b of the edge 9, which are still present at the end eyelets 2, 3. The thread eye 15 lies with its center on the line 19 or is beyond this outwards, ie in FIG. 4 bent to the left. It is arranged in the middle section 9c of the former edge 9. This section 9c is at a distance X to the Line 19. The distance X is preferably at least as large as half the width B1 of the shaft 4 in the region of the thread eye 15. The edge 9 is divided in the forming process into sections, namely the sections 9a, 9b, which lie on the line 19 and pass with an outwardly directed bend or arc into sections 9d, 9e which lead the edge away from the line 19 and merge into the central section 9c, which in turn is straight.

Die so erzeugte Flachband-Weblitze 20 bedarf zu ihrer Herstellung im Vergleich zu herkömmlich aus einem entsprechend breiteren Metallbandabschnitt ausgestanzten Weblitzen eines geringeren Materialaufwands. Im Vergleich zu Weblitzen mit aufgeweiteten Endösen ergeben sich geringere lokale Materialverformungen. Die Materialwahl kann optimiert werden.The ribbon heald 20 produced in this way requires a smaller amount of material for its production than healds punched out of a correspondingly wider metal band section. Compared to healds with flared end loops, there are fewer local material deformations. The choice of material can be optimized.

Eine komplementäre Flachband-Weblitze 21 lässt sich aus dem Flachband-Weblitzenrohling 18 erzeugen. Wiederum wird ein Umformvorgang vorgenommen, in dessen Verlauf die Mitte des Schafts 4 auf die Linie 19 gebracht wird, die den ehemaligen Verlauf der Kante 9 markiert. Die Kante 9 wird dadurch in die Abschnitte 9a, 9b, 9c, 9d, 9e unterteilt. Die vorige Beschreibung des Flachband-Weblitzenrohlings 18 und der Flachband-Weblitze 20 gilt unter Zugrundelegung gleicher Bezugszeichen entsprechend.A complementary flat ribbon heald 21 can be produced from the ribbon heald 18. Again, a forming process is carried out, during which the center of the shaft 4 is brought to the line 19, which marks the former course of the edge 9. The edge 9 is thereby divided into the sections 9a, 9b, 9c, 9d, 9e. The previous description of the ribbon heald wire blank 18 and the flatweave heald 20 applies correspondingly on the basis of the same reference numerals.

Werden die Flachband-Weblitzen 20, 21, wie Figur 6 veranschaulicht, passend so übereinander gelegt, wie sie auf Tragschienen aufgereiht sind, zeigt sich, dass die Schäfte 4 voneinander weg gebogen sind. Es entsteht deshalb im Bereich der Fadenaugen 15 zwischen den Kantenabschnitten 14 der Schäfte 4 ein Abstand R, der wesentlich größer ist als der Abstand D gemäß Figur 3. Der Abstand R ist vorzugsweise so groß wie die halbe Breite B1 des Schafts 4, idealerweise so groß wie die Breite B1 des Schafts 4.Be the flat-band heddles 20, 21, such FIG. 6 illustrates, suitably superimposed, as they are lined up on mounting rails, it turns out that the shanks 4 are bent away from each other. It therefore arises in the field of thread eyes 15 between the edge portions 14 of the shafts 4, a distance R, which is substantially greater than the distance D according to FIG. 3 , The distance R is preferably as large as half the width B1 of the shaft 4, ideally as large as the width B1 of the shaft 4.

Figur 7 veranschaulicht ein abgewandeltes Weblitzenpaar 22 mit J-förmigen Endösen 2, 3. Im Übrigen gelten die vorigen Ausführungen entsprechend unter Zugrundelegung gleicher Bezugszeichen. FIG. 7 illustrates a modified heald pair 22 with J-shaped end eyelets 2, 3. Incidentally, the above statements apply accordingly on the basis of the same reference numerals.

Ein Weblitzenpaar 23 mit ringförmigen Endösen 2, 3 veranschaulicht Figur 8. Wiederum gilt die vorige Beschreibung entsprechend.A heald pair 23 with annular end loops 2, 3 illustrated FIG. 8 , Again, the previous description applies accordingly.

Während der Versatz des Abschnitts 9c der Kante 9 bei allen vorigen Ausführungsbeispielen an den Übergangsabschnitten 5, 6 angeordnet ist, ist es auch möglich, diesen Versatz in den Bereich des Schafts 4 zu verlegen. Ein solches Beispiel zeigt Figur 9. Während der Übergangsbereich 5 die Breite der Weblitze von der größeren Breite B im Bereich der Endöse 2 auf den Betrag der geringeren Breite A des Schafts 4 reduziert, erstreckt sich der gerade Abschnitt 9a der Kante 9 sowohl über die Endöse 2 als auch über den Übergangsbereich 5. Der sich anschließende Schaft 4 ist gekröpft, so dass der Abschnitt 9d der Kante 9 im Bereich des Schafts 4 liegt. Auch hier schließt sich unmittelbar an den geraden Abschnitt 9a über einen Bogen oder einen Knick der auswärts gewandte Abschnitt 9d an.While the offset of the portion 9c of the edge 9 in all previous embodiments is arranged on the transitional sections 5, 6, it is also possible to lay this offset in the region of the shaft 4. Such an example shows FIG. 9 , While the transition region 5 reduces the width of the heald from the greater width B in the region of the end eyelet 2 to the smaller width A of the shaft 4, the straight portion 9a of the edge 9 extends both over the end eyelet 2 and over the transition region 5 The adjoining shank 4 is bent, so that the section 9d of the edge 9 lies in the region of the shank 4. Again, immediately adjoins the straight portion 9a via a bow or a bend of the outwardly facing portion 9d.

Die erfindungsgemäßen Weblitzen bestehen aus einem Metallbandabschnitt der Breite B, der schmaler ist als die insgesamt für die Flachbandlitze 20 benötigte Breite B+X. Die Flachbandlitze 20 weist eine im Wesentlichen unbearbeitete, jedenfalls unbeschnittene, von dem Metallbandabschnitt stammende Kante 9 und eine Kante 10, 11, 12, 13, 14 auf die im Bereich des Schafts 4 und der Übergangsabschnitte 5, 6 durch Beschneiden des Metallbandabschnitts erzeugt worden ist. Eine auswärts gerichtete Kröpfung des Schafts 4 schafft einen vergrößerten Abstand R zwischen zwei zusammengehörigen gegensinnig gekröpften Flachband-Weblitzen eines Weblitzenpaars 23, zu dem zwei gegensinnig gekröpfte Flachband-Weblitzen 20, 21 gehören.The healds according to the invention consist of a metal strip section of width B which is narrower than the total width B + X required for the flat stranded strand 20. The flat strip strand 20 has a substantially unprocessed, in any case uncircumcised, originating from the metal strip portion edge 9 and an edge 10, 11, 12, 13, 14 which has been generated in the region of the shaft 4 and the transition sections 5, 6 by trimming the metal strip portion , An outward turn of the shaft 4 creates an increased distance R between two associated oppositely cranked flat-band healds of a heald pair 23, to which two oppositely cranked flat-band healds 20, 21 belong.

Bezugszeichenreference numeral

11
Flachband-WeblitzenrohlingFlat ribbon heald
2, 32, 3
Endösenend loops
44
Schaftshaft
5, 65, 6
ÜbergangsbereicheTransition areas
7, 87, 8
Öffnungenopenings
9, 9a - 9d9, 9a - 9d
Kanteedge
10, 1110, 11
Abschnittesections
12, 13, 1412, 13, 14
Kantenabschnitteedge portions
1515
Fadenaugethread eye
16, 1716, 17
Öffnungenopenings
1818
Flachband-WeblitzenrohlingFlat ribbon heald
1919
Linieline
20, 2120, 21
Flachband-WeblitzeFlat ribbon heald
22, 2322, 23
Litzenpaarlead pair

Claims (8)

  1. Flat band heald (20) with at least one end eyelet (2), a shaft (4) extending away from the end eyelet (2) and at least one thread eyelet (15) provided on the shaft (4), consisting of a metal band section, of which the original width (B) is unchanged at the end eyelet (2) and the width (B1) along the shaft (4) is reduced by removal of material in order to configure a heald blank (1, 18),
    wherein configured between the end eyelet (2) and the shaft (4) is a transition section (5), in which the width is reduced from the larger width (B) of the end eyelet (2) to the smaller width (B1) of the shaft (4),
    wherein the heald blank (1) runs through a further machining step in the form of a stamping step, during the course of which it is subjected in the transition section (5) to a crimping directed outwards away from an adjacent heald (21),
    wherein the end eyelet (2) has a straight edge (9a), which extends as far as a location, at which the transition section (5) or the shaft (4) has the outward bend with an outwardly directed edge section (9d).
  2. Flat band heald according to claim 1, characterised in that the end eyelet (2), the transition section (5) and the shaft (4) are arranged in a common plane.
  3. Flat band heald according to claim 1, characterised in that the end eyelet (2) is configured to be closed in the shape of a ring.
  4. Flat band heald according to claim 1, characterised in that the end eyelet (2) is configured to be open on one side.
  5. Flat band heald according to claim 1, characterised in that the shaft (4) has a straight edge (9c) and a further edge, which is sub-divided into a plurality of staggered edge sections (10, 11, 12, 13, 14).
  6. Flat band heald according to claim 1, characterised in that a displacement, which corresponds to at least half the shaft width (B1), is achieved between the thread eyelet (15) and the straight edge (9a) as a result of the outward bend.
  7. Flat band heald according to claim 1, characterised in that as a result of the outward bend of two flat band healds (20, 21) belonging to one another and bent outwards in opposite directions a space (R), which is at least as large as half the shaft width (B1), is generated between the edge sections (14) of the respective flat band heald (20, 21).
  8. Process for the production of a flat band heald with at least one end eyelet (2), a shaft (4) extending away from the end eyelet (2) and at least one thread eyelet (15) provided on the shaft (4), with the following measures:
    providing a metal band section, which has two parallel outer edges, the spacing of which defines the width (B) of the metal band section,
    configuring at least one end eyelet (2) by generating an opening (7) to retain the width (B),
    removing material along the shaft (4) to be generated to reduce the width and configure a transition section (5) between the shaft (4) and the end eyelet (2) to obtain a straight edge (9) of the original metal band section,
    wherein to generate the shaft (4) and the transition region (5) of the flat band heald (20), material is removed along only one of the two edges of the metal band section,
    deforming the transition section (5) or the shaft (4) configured between the end eyelet (2) and the shaft (4) by means of a stamping step in order to provide a displacement (9a, 9d, 9c) of the straight edge (9).
EP07014643A 2007-07-26 2007-07-26 Narrow cropped heald Active EP2019157B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07014643A EP2019157B1 (en) 2007-07-26 2007-07-26 Narrow cropped heald
DE502007004263T DE502007004263D1 (en) 2007-07-26 2007-07-26 Narrow cranked heald
ES07014643T ES2347696T3 (en) 2007-07-26 2007-07-26 STRAIGHT COOLED MALL.
JP2008184873A JP2009030223A (en) 2007-07-26 2008-07-16 Narrow cranked heald
KR1020080069872A KR101050972B1 (en) 2007-07-26 2008-07-18 Narrow crankshaft heald
CN2008101447765A CN101353841B (en) 2007-07-26 2008-07-25 Narrow cranked heald
US12/219,749 US7717140B2 (en) 2007-07-26 2008-07-28 Narrow cranked heald

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07014643A EP2019157B1 (en) 2007-07-26 2007-07-26 Narrow cropped heald

Publications (2)

Publication Number Publication Date
EP2019157A1 EP2019157A1 (en) 2009-01-28
EP2019157B1 true EP2019157B1 (en) 2010-06-30

Family

ID=38791985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07014643A Active EP2019157B1 (en) 2007-07-26 2007-07-26 Narrow cropped heald

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US (1) US7717140B2 (en)
EP (1) EP2019157B1 (en)
JP (1) JP2009030223A (en)
KR (1) KR101050972B1 (en)
CN (1) CN101353841B (en)
DE (1) DE502007004263D1 (en)
ES (1) ES2347696T3 (en)

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* Cited by examiner, † Cited by third party
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CN102747490A (en) * 2012-07-24 2012-10-24 常州市武进牛塘如意纺织器材厂 Energy-saving high-efficiency double-row closed flat metal heald
JP6350210B2 (en) * 2014-10-27 2018-07-04 株式会社豊田自動織機 Resin heald and method for manufacturing resin heald

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Also Published As

Publication number Publication date
KR101050972B1 (en) 2011-07-26
CN101353841B (en) 2012-03-21
EP2019157A1 (en) 2009-01-28
JP2009030223A (en) 2009-02-12
DE502007004263D1 (en) 2010-08-12
ES2347696T3 (en) 2010-11-03
CN101353841A (en) 2009-01-28
US20090025817A1 (en) 2009-01-29
KR20090012089A (en) 2009-02-02
US7717140B2 (en) 2010-05-18

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