EP2013129B1 - Mouthpiece for a yarn gripper, comprising a needle strip, needle strip for a mouthpiece, and method for the production of a needle strip - Google Patents

Mouthpiece for a yarn gripper, comprising a needle strip, needle strip for a mouthpiece, and method for the production of a needle strip Download PDF

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Publication number
EP2013129B1
EP2013129B1 EP07724135A EP07724135A EP2013129B1 EP 2013129 B1 EP2013129 B1 EP 2013129B1 EP 07724135 A EP07724135 A EP 07724135A EP 07724135 A EP07724135 A EP 07724135A EP 2013129 B1 EP2013129 B1 EP 2013129B1
Authority
EP
European Patent Office
Prior art keywords
needles
cover plate
mouthpiece
needle line
tips
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.)
Not-in-force
Application number
EP07724135A
Other languages
German (de)
French (fr)
Other versions
EP2013129A2 (en
Inventor
Friedrich Henninger
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.)
Staedtler and Uhl KG
Original Assignee
Staedtler and Uhl KG
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Filing date
Publication date
Application filed by Staedtler and Uhl KG filed Critical Staedtler and Uhl KG
Publication of EP2013129A2 publication Critical patent/EP2013129A2/en
Application granted granted Critical
Publication of EP2013129B1 publication Critical patent/EP2013129B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention is directed to a mouthpiece for a thread gripper comprising a pin strip formed by a series of juxtaposed needles, the tips of the needles of the pin strip being positioned to project into the suction opening of the mouthpiece and to a pin strip for such a mouthpiece.
  • a thread gripper of the generic type is made EP 0 398 415 B1 known.
  • Thread grippers are also known in which a bent sheet metal section is provided in the mouth region, on which a pin strip is fastened such that the tips of the needles protrude into the opening region.
  • the pinstrip consists of a series of needles and two cover sheets, i. for the production of a total of a relatively large number of parts is required.
  • sensors are provided to monitor the tear of the thread and interrupt the unwinding of the thread.
  • To reassemble the broken ends of the thread it is necessary to seek and grasp the thread ends.
  • the gripping of the thread on the side of the roll is usually accomplished by means of a suction mouthpiece.
  • a pin strip is provided at the suction mouthpiece, at its exact positioning as well as the tolerance of the position of the individual needles stringent requirements be put.
  • mouthpieces which comprise double-folded retaining plates, wherein a prefabricated pin strip is fastened to the inside of the front end of the retaining plate.
  • the pinstripe in turn comprises two cover plates. Both the production of the pin strip as such and the folding of the retaining plate is relatively expensive.
  • a mouthpiece of a textile machine which comprises a thread gripper, which is designed as a plate with a projecting into a suction opening of the mouthpiece pointed and optionally curved end.
  • the invention has the object, a mouthpiece of the type mentioned and a particular replaceable pin strip for this purpose so that a cost-effective production with low tolerance and accurate positioning in the tip area is possible.
  • the needles are bent by about 60 °.
  • the needles can be embossed and arranged on a cover plate, which in turn is connected to the mouthpiece.
  • the free cover plate end overlaps the needles, leaving their tips, wherein advantageously the end edge of the cover plate is ground in a wedge shape in the tips of the needles.
  • the needles can be adhesively bonded to the cover plate, wherein it is advantageously provided that hot glue strips are applied to the cover plate in the contact region of the pin strip.
  • the invention is also directed to a pin strip for the mouthpiece of a thread gripper, which is characterized in that the needles, preferably at an angle of 60 °, are bent.
  • the invention relates to a method for producing a pin strip, comprising a plurality of needles for the mouth of a thread gripper, which is characterized in that the needles are provided in the uncured state with a bend, hardened and then glued against a curved cover plate.
  • a mouthpiece 1 of a thread gripper shown in the drawing comprises guide plates 2, 3 and a suction opening 4 formed therebetween, through which air is drawn in the direction of the arrow 5.
  • a pin strip 6 is fixed, which consists of a series of juxtaposed embossed and bent by an angle a of 60 ° needles.
  • Each individual needle 7 has a foot region 8 and a tip region 9 and a bend 10 between them.
  • the needles 7 are glued to the needle strip cross gusset 11 by hot glue strips 12 and 13.
  • the front edge 14 of the cover plate 11 is ground wedge-shaped and ends behind the tips 15 of the needles. 7
  • the cover plate 11 is screwed through through bolts 16, 17 with the guide plate 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Knitting Machines (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Disclosed is a mouthpiece for a yarn gripper, comprising a needle strip that is formed by a row of adjacent needles (7), the tips (9) of the needles (7) of the needle strip being arranged so as to protrude into the suction port (4) of the mouthpiece (1). The inventive mouthpiece is characterized in that the needles (7) are bent by an angle α.

Description

Die Erfindung richtet sich auf ein Mundstück für einen Fadengreifer umfassend einen durch eine Reihe nebeneinander angeordneter Nadeln gebildeten Nadelstreifen, wobei die Spitzen der Nadeln des Nadelstreifens so positioniert sind, dass sie in die Saugöffnung des Mundstücks hineinragen und auf einen Nadelstreifen für ein solches Mundstück.The invention is directed to a mouthpiece for a thread gripper comprising a pin strip formed by a series of juxtaposed needles, the tips of the needles of the pin strip being positioned to project into the suction opening of the mouthpiece and to a pin strip for such a mouthpiece.

Ein Fadengreifer der gattungsgemäßen Art ist aus EP 0 398 415 B1 bekannt.A thread gripper of the generic type is made EP 0 398 415 B1 known.

Es sind weiterhin Fadengreifer bekannt, bei welchen im Mundbereich ein umgebogener Blechabschnitt vorgesehen ist, auf welchem ein Nadelstreifen derart befestigt wird, dass die Spitzen der Nadeln in den Öffnungsbereich ragen. Der Nadelstreifen besteht aus einer Reihe von Nadeln und zwei Deckblechen, d.h. für die Herstellung ist insgesamt eine relativ große Anzahl von Teilen erforderlich.Thread grippers are also known in which a bent sheet metal section is provided in the mouth region, on which a pin strip is fastened such that the tips of the needles protrude into the opening region. The pinstrip consists of a series of needles and two cover sheets, i. for the production of a total of a relatively large number of parts is required.

Bei Textilmaschinen, die Fäden verarbeiten, die von einem Wickel abgezogen werden, sind Sensoren vorgesehen, die das Abreißen des Fadens überwachen und das Abwickeln des Fadens unterbrechen. Um die unterbrochenen Enden des Fadens wieder zusammenzufügen, ist es notwendig, die Fadenenden zu suchen und zu ergreifen. Das Ergreifen des Fadens an der Seite des Wickels wird in der Regel mittels eines Saugmundstücks bewerkstelligt. Zum Ergreifen des Fadens ist an dem Saugmundstück ein Nadelstreifen vorgesehen, an dessen exakte Positionierung insgesamt wie auch an die Toleranz der Position der einzelnen Nadeln strenge Anforderungen gestellt werden. Diesen Anforderungen wird der gattungsgemäß als bekannt vorausgesetzte Kamm nicht hinreichend gerecht.For textile machines that process threads that are pulled from a roll, sensors are provided to monitor the tear of the thread and interrupt the unwinding of the thread. To reassemble the broken ends of the thread, it is necessary to seek and grasp the thread ends. The gripping of the thread on the side of the roll is usually accomplished by means of a suction mouthpiece. For gripping the thread, a pin strip is provided at the suction mouthpiece, at its exact positioning as well as the tolerance of the position of the individual needles stringent requirements be put. These requirements of the genus known as known comb is not sufficiently fair.

Daneben sind auch noch Mundstücke bekannt, die zweifach abgekantete Haltebleche umfassen, wobei ein vorkonfektionierter Nadelstreifen an der Innenseite des Vorderendes des Halteblechs befestigt wird. Der Nadelstreifen umfasst seinerseits wieder zwei Deckbleche. Sowohl das Herstellen des Nadelstreifens als solchen als auch das Abkanten des Halteblechs ist relativ aufwendig.In addition, mouthpieces are also known which comprise double-folded retaining plates, wherein a prefabricated pin strip is fastened to the inside of the front end of the retaining plate. The pinstripe in turn comprises two cover plates. Both the production of the pin strip as such and the folding of the retaining plate is relatively expensive.

Aus der US 4,550,886 ist ein Mundstück einer Textilmaschine bekannt, die einen Fadengreifer umfasst, der als Platte mit einem in eine Saugöffnung des Mundstücks hineinragenden spitz zulaufenden und gegebenenfalls gebogenen Ende ausgebildet ist.From the US 4,550,886 a mouthpiece of a textile machine is known which comprises a thread gripper, which is designed as a plate with a projecting into a suction opening of the mouthpiece pointed and optionally curved end.

Weiterhin ist aus der US 2,857,113 ein anderes Mundstück eines Fadengreifers einer Textilmaschine bekannt, die einen Nadelkamm mit einer Reihe nebeneinander angeordneter Nadeln umfasst, wobei die Spitzen der Nadeln so positioniert sind, dass sie in die Saugöffnung des Mundstücks hineinragen.Furthermore, from the US 2,857,113 another mouthpiece of a thread grab of a textile machine is known, which comprises a needle comb with a series of juxtaposed needles, wherein the tips of the needles are positioned so that they protrude into the suction opening of the mouthpiece.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Mundstück der eingangs genannten Art und einen insbesondere auswechselbaren Nadelstreifen hierfür so auszugestalten, dass eine kostengünstige Herstellung bei geringer Toleranz und genauer Positionierung im Spitzenbereich möglich ist.Proceeding from this, the invention has the object, a mouthpiece of the type mentioned and a particular replaceable pin strip for this purpose so that a cost-effective production with low tolerance and accurate positioning in the tip area is possible.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 und 7 gelöst.This object is achieved by the features of claims 1 and 7.

Durch die im Anspruch 1 beanspruchte Ausgestaltung wird ein sicheres Erfassen des Fadens gewährleistet. Weiterhin wird durch die erfindunggemäße Ausgestaltung des Nadelstreifen, d.h. der Nadeln und des Grundbleches, erreicht, dass die Nadelspitzen ohne zusätzliche Arbeitsgänge definiert positioniert werden können.By claimed in claim 1 embodiment, a secure detection of the thread is ensured. Furthermore, the inventive design of the pinstrip, i. The needles and the base plate, achieved that the needle tips can be positioned defined without additional operations.

Vorzugsweise ist vorgesehen, dass die Nadeln um ca. 60° gebogen sind.Preferably, it is provided that the needles are bent by about 60 °.

Die Nadeln können geprägt und an einem Deckblech angeordnet sein, welches seinerseits mit dem Mundstück verbunden ist.The needles can be embossed and arranged on a cover plate, which in turn is connected to the mouthpiece.

Mit Vorteil übergreift das freie Deckblechende die Nadeln unter Freilassung ihrer Spitzen, wobei günstigerweise die Stirnkante des Deckblechs im Bereich der Spitzen der Nadeln keilförmig angeschliffen ist.Advantageously, the free cover plate end overlaps the needles, leaving their tips, wherein advantageously the end edge of the cover plate is ground in a wedge shape in the tips of the needles.

Die Nadeln können mit dem Deckblech verklebt sein, wobei insoweit vorteilhafterweise vorgesehen ist, dass im Anlagebereich des Nadelstreifens am Deckblech Heißkleberstreifen aufgebracht sind.The needles can be adhesively bonded to the cover plate, wherein it is advantageously provided that hot glue strips are applied to the cover plate in the contact region of the pin strip.

Die Erfindung richtet sich auch auf einen Nadelstreifen für das Mundstück eines Fadengreifers, welcher sich dadurch auszeichnet, dass die Nadeln, vorzugsweise um einen Winkel von 60°, gebogen sind.The invention is also directed to a pin strip for the mouthpiece of a thread gripper, which is characterized in that the needles, preferably at an angle of 60 °, are bent.

Weiterhin betrifft die Erfindung ein Verfahren zur Herstellung eines Nadelstreifens, umfassend eine Mehrzahl von Nadeln für das Mundstück eines Fadengreifers, welches sich dadurch auszeichnet, dass die Nadeln im ungehärteten Zustand mit einer Biegung versehen werden, gehärtet werden und dann gegen ein gebogenes Deckblech verklebt werden.Furthermore, the invention relates to a method for producing a pin strip, comprising a plurality of needles for the mouth of a thread gripper, which is characterized in that the needles are provided in the uncured state with a bend, hardened and then glued against a curved cover plate.

Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung näher erläutert. Diese zeigt einen schematischen Schnitt durch ein erfindungsgemäßes Mundstück eines Nadelgreifers.The invention will be explained in more detail with reference to a preferred embodiment in conjunction with the drawings. This shows a schematic section through an inventive mouthpiece of a needle gripper.

Ein in der Zeichnung dargestelltes Mundstück 1 eines Fadengreifers umfasst Leitbleche 2, 3 und eine dazwischen ausgebildete Saugöffnung 4, durch die Luft in Richtung des Pfeils 5 angesaugt wird.A mouthpiece 1 of a thread gripper shown in the drawing comprises guide plates 2, 3 and a suction opening 4 formed therebetween, through which air is drawn in the direction of the arrow 5.

An dem in der Zeichnung rechten Leitblech 2 ist ein Nadelstreifen 6 befestigt, der aus einer Reihe nebeneinander angeordneter geprägter und um einen Winkel a von 60° gebogener Nadeln besteht.On the right in the drawing guide plate 2, a pin strip 6 is fixed, which consists of a series of juxtaposed embossed and bent by an angle a of 60 ° needles.

Jede einzelne Nadel 7 weist einen Fußbereich 8 und einen Spitzenbereich 9 auf und dazwischen eine Biegung 10.Each individual needle 7 has a foot region 8 and a tip region 9 and a bend 10 between them.

Die Nadeln 7 sind mit einem den Nadelstreifen übergreifenden Eckblech 11 durch Heißklebestreifen 12 und 13 verklebt.The needles 7 are glued to the needle strip cross gusset 11 by hot glue strips 12 and 13.

Die Stirnkante 14 des Deckblechs 11 ist keilförmig angeschliffen und endet hinter den Spitzen 15 der Nadeln 7.The front edge 14 of the cover plate 11 is ground wedge-shaped and ends behind the tips 15 of the needles. 7

Das Deckblech 11 ist über durchgehende Schrauben 16, 17 mit dem Leitblech 2 verschraubt.The cover plate 11 is screwed through through bolts 16, 17 with the guide plate 2.

Claims (7)

  1. Needle line for a mouth piece (1) of a yam gripper, wherein the mouth piece (1) comprises guide plates (2, 3) and a suction opening (4) formed therebetween, the needle line comprising
    a) a handling aid designed as a bent cover plate (11), and
    b) a series of needles (7) arranged next to one another,
    wherein
    c) the needles (7) are embossed and bent by an angle (α),
    d) the needles (7) are arranged on the cover plate (11) and are adhesively bonded to the cover plate (11),
    e) the cover plate (11) is connectable to one of the guide plates (2, 3) so that tips (15) of the needles (7) are positioned so as to protrude into the suction opening (4) of the mouth piece (1).
  2. Needle line according to claim 1, characterized in that the needles (7) are bent by approx. 60°.
  3. Needle line according to claim 1, characterized in that a free end of the cover plate (11) overlaps the needles (7), leaving the tips (15) thereof exposed.
  4. Needle line according to claim 3, characterized in that the leading edge of the cover plate (11) is formed so as to be wedge-shaped in the region (9) of the tips (15) of the needles (7).
  5. Needle line according to claim 3 or 4, characterized in that the leading edge of the cover plate (11) is ground in the region (9) of the tips (15) of the needles (7).
  6. Needle line according to claim 1, characterized in that heat-activatable adhesive strips (12, 13) are attached in the region in which the needles (7) contact the cover plate (11).
  7. Method for producing a needle line (6) comprising a plurality of needles (7) according to one of the above claims, characterized in that the needles (7) are provided, when unhardened, with a bend, are hardened and then adhesively bonded to a bent cover plate (11).
EP07724135A 2006-04-28 2007-04-11 Mouthpiece for a yarn gripper, comprising a needle strip, needle strip for a mouthpiece, and method for the production of a needle strip Not-in-force EP2013129B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610020353 DE102006020353A1 (en) 2006-04-28 2006-04-28 Thread gripper`s mouthpiece for use in textile machine, has pinstripe formed by row of pins which are arranged next to each other and bent around angle of approximately sixty degrees, and pressed such that pins are arranged at cover plate
PCT/EP2007/003194 WO2007124846A2 (en) 2006-04-28 2007-04-11 Mouthpiece for a yarn gripper, comprising a needle strip, needle strip for a mouthpiece, and method for the production of a needle strip

Publications (2)

Publication Number Publication Date
EP2013129A2 EP2013129A2 (en) 2009-01-14
EP2013129B1 true EP2013129B1 (en) 2009-07-22

Family

ID=38175800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724135A Not-in-force EP2013129B1 (en) 2006-04-28 2007-04-11 Mouthpiece for a yarn gripper, comprising a needle strip, needle strip for a mouthpiece, and method for the production of a needle strip

Country Status (5)

Country Link
EP (1) EP2013129B1 (en)
JP (1) JP4898903B2 (en)
CN (1) CN101432213B (en)
DE (2) DE102006020353A1 (en)
WO (1) WO2007124846A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011114769A1 (en) 2011-10-01 2013-04-04 Oerlikon Textile Gmbh & Co. Kg Suction nozzle for a job of a cheese-producing textile machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960618C (en) * 1953-11-03 1957-03-21 Reiners Walter Dr Ing Suction nozzle on winding machines for detecting, searching for, lifting or the like of thread ends
US2857113A (en) * 1953-11-03 1958-10-21 Reiners Walter Dr Ing Suction nozzle for catching thread ends
DE1560568C3 (en) * 1965-05-29 1974-10-10 Reiners, Walter, Dr.-Ing., 4050 Moenchengladbach Device for detecting the beginning of the thread of a cop
JPS4844125Y1 (en) * 1970-07-28 1973-12-19
JPS59173664A (en) * 1983-03-18 1984-10-01 三洋電機株式会社 Heat pump type air conditioner
JPS59173664U (en) * 1983-05-04 1984-11-20 村田機械株式会社 Packaging yarn end suction and holding device in yarn winding machine
DE4012800C2 (en) * 1989-04-29 1994-09-29 Barmag Barmer Maschf Thread suction device
IT1229739B (en) * 1989-05-16 1991-09-07 Savio Spa PROCEDURE FOR THE REALIZATION OF COMBS TO BE APPLIED TO SUCTION VENTS FOR THE COLLECTION OF THE BAND OF YARNS WRAPPED IN PACKAGING AND PERFECTED COMBS SO OBTAINED.
JP2002080170A (en) * 2000-09-06 2002-03-19 Murata Mach Ltd Device for pulling yarn end out of package

Also Published As

Publication number Publication date
JP4898903B2 (en) 2012-03-21
DE502007001142D1 (en) 2009-09-03
JP2009535277A (en) 2009-10-01
DE102006020353A1 (en) 2007-10-31
WO2007124846A2 (en) 2007-11-08
CN101432213A (en) 2009-05-13
CN101432213B (en) 2012-05-09
EP2013129A2 (en) 2009-01-14
WO2007124846A3 (en) 2008-04-10

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