EP0605518B1 - Gill box - Google Patents

Gill box Download PDF

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Publication number
EP0605518B1
EP0605518B1 EP92919784A EP92919784A EP0605518B1 EP 0605518 B1 EP0605518 B1 EP 0605518B1 EP 92919784 A EP92919784 A EP 92919784A EP 92919784 A EP92919784 A EP 92919784A EP 0605518 B1 EP0605518 B1 EP 0605518B1
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EP
European Patent Office
Prior art keywords
fallers
curve
ejector pins
gill
guided
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.)
Expired - Lifetime
Application number
EP92919784A
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German (de)
French (fr)
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EP0605518A1 (en
Inventor
Horst KÖPPLER
Hans-Jürgen FLEISCHER
Kornelia Ihle
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.)
Spinnereimaschinenbau Leisnig GmbH
Original Assignee
SPINNEREIMASCHINENBAU LEISNIG
SPINNEREIMASCHINENBAU LEISNIG GmbH
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Publication of EP0605518A1 publication Critical patent/EP0605518A1/en
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Publication of EP0605518B1 publication Critical patent/EP0605518B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02—Gill boxes or other drafting machines employing fallers or like pinned bars

Definitions

  • elements equipped with many individual needles are used, which execute a rotational movement or are guided all round in curved tracks.
  • two working elements are used, which pierce the sliver with needles from above and below.
  • needle roller drafting systems are known (European Patent 0 035 977 B1), which have combs equipped with curved needles, which rotate in hollow disks around hollow shafts.
  • the main disadvantage of this device is that the length of the processing zone, where needles engage the sliver, is very short and that the air forced through it can have a negative influence on the sliver. In addition, the needles only partially reach through the sliver.
  • this drafting system is not suitable for a wide range of fiber values.
  • the short needles which only partially penetrate from above and below, limit the achievable retention force against the fibers due to the straight working zone, which is disadvantageous for the warping work.
  • the fiber material is in contact with the base of the needle bar in the working zone, which leads to the fixing of individual fibers and the entangling of the entire needle frame drafting system.
  • Such needle field drafting systems can technically only allow a certain nip distance between the drafting rollers and the needle bars and thus restrict the mastery of a high proportion of short fibers.
  • the needle bars used in these needle field heads are poorly suited for the use of prefabricated plastic pin strips and, due to the roller bearing of the bars, are very maintenance-intensive and subject to wear.
  • needle field drafting systems which guide flat needle bars into curves ( DE -P 15 10 455 or DE -P 22 26 464) in order to get them into and out of the sliver as quickly as possible from below using short sine curves.
  • the object is achieved in that the ascending sinoids are at least twice as long as the descending sinoids, the needle bars are moved approximately at right angles to the tang end of the sliver, the ejection pins have parallel faces at their ends and cannot rotate, the curve of the ejection pins remains centric in the cut-out area until the needle tip is lowered below the upper edge of the ejection pin and that the guideway of the ejection pin is connected to one another in its individual sections by tangents and sinoids.
  • the figure shows the arrangement of feed rollers 1 and a 3-roller take-off 2 on the curve of a needle field of a needle field section.
  • the sliver 3 lies above the working path AB, in which the needle bars 4 are guided on the radius r1.
  • the needle bars 4 come from below from the central path section with the radius r2 and pierce at the turning point W of the ascending sinoids S 1 approximately perpendicular to the tangent T in the sliver 3.
  • the needle bars 4 slide quickly down to the radius rz and leave the sliver 3 approximately perpendicular to its tangent T.
  • the ejection bolts 5 are guided in a curve with the depth t through 2 parallel surfaces at their ends in the width b of the groove and can therefore not rotate about themselves.
  • the ejection pins 5 are guided in the section of the return path RB of their curve AK on a radius r4, which is displaced by a dimension h from the central center of the needle field, in such a way that the ejection bolts 5 are moved by an amount h 'from the needle bar base at the tips thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The invention relates to a gill box in a spinning works preparation machine to make individual fibres of a fibre composite uniform and parallel. According to the invention, the curve of the rising sinusoid (51) is at least double the length of the curve of the falling one (52), the fallers (4) are moved at approximately right-angles to the tangent of the fibre web and the ends of the ejector bolts (5) have parallel sliding surfaces which slide in the curve. This has the advantage that the entire needle area is cleaned by the ejector bolts (5) themselves, the entire gill box has only a few wearing parts and high working rates can be attained.

Description

Im Kammgarnspinnprozeß werden für die Vergleichmäßigung des Faserverbandes in den Bereichen bis zur Vorgarnherstellung verschiedene Prinzipien angewendet. Dabei wird immer das Ziel verfolgt, die Einzelfasern innerhalb der Faserbänder zu parallelisieren und gleichmäßig zu verteilen.In the worsted spinning process, various principles are used to even out the fiber structure in the areas up to roving. The goal is always to parallelize and evenly distribute the individual fibers within the slivers.

Im Wesentlichen sind mit vielen Einzelnadeln bestückte Elemente im Einsatz, die eine Rotationsbewegung ausführen oder umlaufend in Kurvenbahnen geführt sind. In den meisten Anwendungsfällen sind zwei Arbeitselemente im Einsatz, die mit Nadeln von oben und unten in das Faserband einstechen.Essentially, elements equipped with many individual needles are used, which execute a rotational movement or are guided all round in curved tracks. In most applications, two working elements are used, which pierce the sliver with needles from above and below.

So sind Nadelwalzenstreckwerke bekannt (Europäisches Patent 0 035 977 B1), die mit gekrümmten Nadeln bestückte Kämme aufweisen, welche in Schlitzscheiben geführt um Hohlwellen rotieren.Thus, needle roller drafting systems are known (European Patent 0 035 977 B1), which have combs equipped with curved needles, which rotate in hollow disks around hollow shafts.

Aus den Walzen heraus wird ein Luftstrom zur Reinigung der Nadeln gepreßt.An air stream is pressed out of the rollers for cleaning the needles.

Hauptnachteil dieser Einrichtung ist, daß die Länge der Bearbeitungezone, wo Nadeln mit dem Faserband im Eingriff sind, sehr kurz ist und daß die hindurchgepreßte Luft einen negativen Einfluß auf das Faserband haben kann. Zudem greifen die Nadeln nur unvollständig durch das Faserband.The main disadvantage of this device is that the length of the processing zone, where needles engage the sliver, is very short and that the air forced through it can have a negative influence on the sliver. In addition, the needles only partially reach through the sliver.

Dadurch ist dieses Streckwerk nicht für eine breite Palette von Faserwerten geeignet.As a result, this drafting system is not suitable for a wide range of fiber values.

Es sind des weiteren Streckwerke bekannt, wo in umlaufenden Ketten geführte Nadelstäbe schwenkbar gelagert sind und ebenfalls von unten und oben in das Faserband eingreifen (DE 26 49 486 C2/ EP 0 311 544 A1). Charakteristisch ist hier der Eineatz von schwenkbaren, in Kurven geführten, Nadelstäben mit kurzen Nadeln. Charakteristisch ist hier der Einsatz von schwenkbaren Ein- und Ausstiches Schwenkbewegungen gegenüber dem Faserband aus, was das Herauslösen von Einzelfasern begünstigt.There are further known drafting systems, where needle bars guided in revolving chains are pivoted and also engage in the sliver from below and above (DE 26 49 486 C2 / EP 0 311 544 A1). The characteristic feature here is the swiveling of needle bars with short needles, which are guided in curves. Characteristic here is the use of swiveling punctures and undercuts swiveling movements relative to the sliver, which favors the detachment of individual fibers.

Die kurzen, jeweils nur teilweise von oben und unten einstechenden Nadeln schränken durch die nur geradlinig verlaufende Arbeitszone die erzielbare Rückhaltekraft gegenüber den Fasern ein, was von Nachteil für die Verzugsarbeit ist.The short needles, which only partially penetrate from above and below, limit the achievable retention force against the fibers due to the straight working zone, which is disadvantageous for the warping work.

Das Fasermaterial hat in der Arbeitszone Kontakt mit dem Nadelstabgrund, was zum Festsetzen von Einzelfasern führt und die Verfilzung des ganzen Nadelfeldstreckwerkes zur Folge hat.The fiber material is in contact with the base of the needle bar in the working zone, which leads to the fixing of individual fibers and the entangling of the entire needle frame drafting system.

Diese Art Streckwerke erfordert einen sehr hohen Aufwand zur Reinigung. Es werden Bürsten und Bürstenwalzen eingesetzt, um die Nadelstäbe zu säubern, die aber dann wiederum selbst mit weiteren Mitteln sauber zu halten sind.This type of drafting system requires a very high level of cleaning effort. Brushes and brush rollers are used to clean the needle bars, which in turn can be kept clean by other means.

Solche Nadelfeldstreckwerke können technisch nur einen bestimmten Nip-Abstand der Verzugswalzen zu den Nadelstäben ermöglichen und schränken damit die Beherrschung eines hohen Kurzfaseranteiles ein.Such needle field drafting systems can technically only allow a certain nip distance between the drafting rollers and the needle bars and thus restrict the mastery of a high proportion of short fibers.

Die in diesen Nadelfeldköpfen zum Einsatz kommenden Nadelstäbe sind aufgrund ihrer Form als runder oder eckiger Stab schlecht für die Anwendung von vorgefertigten Plastnadelstreifen geeignet und insgesamt durch die Rollenlagerung der Stäbe sehr wartungsintensiv und verschleißbehaftet.Due to their shape as a round or square rod, the needle bars used in these needle field heads are poorly suited for the use of prefabricated plastic pin strips and, due to the roller bearing of the bars, are very maintenance-intensive and subject to wear.

Weiterhin sind Nadelfeldstreckwerke bekannt, die flache Nadelstäbe in Kurven führen (DE-P 15 10 455 bzw. DE-P 22 26 464), um dieselben über kurze Sinuskurven möglichst schnell von unten einseitig in das und aus dem Faserband zu bekommen.Furthermore, needle field drafting systems are known which guide flat needle bars into curves ( DE -P 15 10 455 or DE -P 22 26 464) in order to get them into and out of the sliver as quickly as possible from below using short sine curves.

Durch das plötzliche Einschieben der Nadeln in das Faserband wurden aber Einzelfasern mit nach oben über die Nadelspitzen gerissen und geraten im Verzugsprozeß außer Kontrolle.Due to the sudden insertion of the needles into the sliver, however, individual fibers were torn up over the needle tips and get out of control in the warping process.

Aus der technischen Anwendung dieses Prinzips ist auch bekannt, daß runde Bolzen zwischen den Nadelstäben in separaten Nutkurven geführt werden, um dem Verfilzen des Nadelfeldes entgegenzuwirken. Diese besitzen aber durch ihre runde Führungsform den Nachteil, daß sie sich bei ihrer Vorwärtsbewegung selbst drehen und zur Wickelbildung und Verfilzung neigen. Außerdem sind die Bahnen solcher Elemente nicht für hohe Arbeitsgeschwindigkeiten optimiert.From the technical application of this principle it is also known that round bolts are guided between the needle bars in separate groove curves in order to counteract the felting of the needle field. However, due to their round guide shape, these have the disadvantage that they rotate themselves during their forward movement and tend to form coils and matting. In addition, the paths of such elements are not optimized for high working speeds.

Die Aufgabe der Erfindung ist es, daß Mittel gefunden werden, die die Einstichverhältnisse in das Faserband so verbessern,

  • daß alle Fasern von den Nadelstäben kontrolliert erfaßt werden,
  • daß die Nadeln der Nadelstäbe das Faserband vollständig durchdringen und
  • daß dem Verfilzen des Nadelfeldes entgegengewirkt wird.
The object of the invention is to find means which improve the puncture conditions in the sliver so
  • that all fibers are controlled by the needle bars,
  • that the needles of the needle bars completely penetrate the sliver and
  • that the felting of the needle field is counteracted.

Die Bahn der Nadelstäbe und der Ausstoßbolzen soll so gestaltet werden,

  • daß hohe Arbeitsgeschwindigkeiten möglich sind und
  • gleichzeitig die Länge der Arbeitsbahn der Nadelstäbe eine solche Länge besitzt, daß die Rückhaltekraft für den Hauptverzug in ausreichender Größe gegeben ist.
The path of the needle bars and the ejection pin should be designed so
  • that high working speeds are possible and
  • at the same time the length of the working path of the needle bars is of such a length that the restraining force for the main distortion is of sufficient size.

Es ist das Ziel,

  • den konstruktiven Aufwand zu reduzieren,
  • den Wartungsaufwand einzuschränken und
  • den Verschleiß zu senken.
Erfindungsgemäß wird die Aufgabe durch die im Anspruch 1 definierten Merkmale gelöst.It is the goal,
  • to reduce the construction effort,
  • limit the maintenance effort and
  • to reduce wear.
According to the invention the object is achieved by the features defined in claim 1.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß die Aufstiegssinoide mindestens doppelt so lang wie die Abstiegssinoide ist, die Nadelstäbe annähernd im rechten Winkel zur Tangende des Faserbandes bewegt werden, die Ausstoßbolzen an ihren Enden parallele Flächen aufweisen und sich nicht drehen können, der Kurvenverlauf der Ausstoßbolzen im Ausstichbereich so lange zentrisch bleibt, bis die Nadelspitze unter die Oberkante der Ausstoßbolzen abgesenkt ist und daß die Führungsbahn der Ausstoßbolzen in ihren Einzelabschnitten durch Tangenten und Sinoiden miteinander verbunden sind.According to the invention the object is achieved in that the ascending sinoids are at least twice as long as the descending sinoids, the needle bars are moved approximately at right angles to the tang end of the sliver, the ejection pins have parallel faces at their ends and cannot rotate, the curve of the ejection pins remains centric in the cut-out area until the needle tip is lowered below the upper edge of the ejection pin and that the guideway of the ejection pin is connected to one another in its individual sections by tangents and sinoids.

Dies bringt den Vorteil, daß das Faserband kontrolliert und faserschonend von den Nadelstäben aufgenommen wird. ein hoher Verzugswiderstand erreicht wird, keine Fasern aus dem Band herausgerissen werden, da die Ausstoßbolzen das Band am Ausstich aus den Nadelstäben herausheben, der manuelle Putzaufwand gering gehalten wird, da sich das gesamte Nadelfeld durch die Ausstoßbolzen selbst reinigt, das gesamte Nadelfeldstreckwerk nur wenige Verschleißteile enthält und hohe Arbeitsgeschwindigkeiten verwirklicht werden.This has the advantage that the sliver is controlled and gently picked up by the needle bars. A high resistance to warping is achieved, no fibers are torn out of the band, because the ejection bolts lift the band out of the needle bars at the cut-out, the manual cleaning effort is kept low, since the entire needle field is cleaned by the ejection bolts, the entire needle field drafting system only has a few wearing parts contains and high working speeds can be realized.

Die Erfindung soll anhand der Zeichnungen näher erläutert werden.The invention will be explained in more detail with reference to the drawings.

Die Fig. zeigt die Anordnung von Speisewalzen 1 und einem 3-Walzenabzug 2 am Kurvenverlauf eines Nadelfeldes einer Nadelfeldstrecke.The figure shows the arrangement of feed rollers 1 and a 3-roller take-off 2 on the curve of a needle field of a needle field section.

Das Faserband 3 liegt über der Arbeitsbahn AB, in der die Nadelstäbe 4 auf dem Radius r1 geführt sind. In der Aufstiegssinoide S1 kommen die Nadelstäbe 4 von unten aus dem zentrischen Bahnabschnitt mit dem Radius r2 und stechen in Höhe des Wendepunktes W der Aufstiegssinoide S₁ annähernd senkrecht zur Tangente T in das Faserband 3.The sliver 3 lies above the working path AB, in which the needle bars 4 are guided on the radius r1. In the ascending sinoids S1, the needle bars 4 come from below from the central path section with the radius r2 and pierce at the turning point W of the ascending sinoids S 1 approximately perpendicular to the tangent T in the sliver 3.

Im Bereich der Abstiegssinoide S₂ gleiten die Nadelstäbe 4 schnell nach unten bis auf den Radius rz und verlassen dabei das Faserband 3 annähernd senkrecht zu dessen Tangente T.In the area of the descending sinoids S₂, the needle bars 4 slide quickly down to the radius rz and leave the sliver 3 approximately perpendicular to its tangent T.

Die Ausstoßbolzen 5 werden in einer Kurve mit der Tiefe t durch 2 an ihren Enden befindliche parallele Flächen in der Breite b der Nut geführt und können dadurch nicht um sich selbst rotieren.The ejection bolts 5 are guided in a curve with the depth t through 2 parallel surfaces at their ends in the width b of the groove and can therefore not rotate about themselves.

Sie tragen im Abschnitt der Arbeitsbahn AB auf dem Radius r₃ ihrer Führungsnut das Faserband auf ihrer Rundung und verhindern den Kontakt desselben mit dem Grund der Nadelstäbe 4. Dies unterstützt im Bereich der Abstiegssinoide S₂ wesentlich den Gleitprozeß der Einzelfasern des Faserbandes 3. Im Bereich der Abstiegssinoide S₂ verbleiben die Ausstoßbolzen 5 um ein bestimmtes Maß V auf ihrer zentrischen Arbeitsbahn AB mit dem Radius r₃. Dadurch gleiten die Nadelstäbe 4 mit ihren Spitzen bis unter die Oberkante der Ausstoßbolzen 5 ab. Die Ausstoßbolzen 5 werden im Abschnitt der Rückführbahn RB ihrer Kurve AK auf einem Radius r4, der um ein Maß h vom zentriechen Mittelpunkt des Nadelfeldes verschoben ist, so geführt, daß die Ausstoßbolzen 5 um ein Maß h' vom Nadelstabgrund an dessen Spitzen bewegt werden.They carry in the section of the working path AB on the radius r₃ of their guide groove the sliver on their rounding and prevent the same from contacting the bottom of the needle bars 4. This supports the sliding process of the individual fibers of the sliver 3 in the area of descending sinoids S₂ 3. In the area of descending sinoids S₂ remain the ejection pin 5 by a certain amount V on their central working path AB with the radius r₃. As a result, the tips of the needle bars 4 slide down to below the upper edge of the ejection pins 5. The ejection pins 5 are guided in the section of the return path RB of their curve AK on a radius r4, which is displaced by a dimension h from the central center of the needle field, in such a way that the ejection bolts 5 are moved by an amount h 'from the needle bar base at the tips thereof.

Dadurch wird jeglicher anhaftender Faserflug abgeetriffen und kann gleichzeitig abgesaugt werden.This removes any adhering fiber fly and can be vacuumed off at the same time.

Claims (5)

  1. Gill-box frame for slivers (3),
    - by which the fallers (4) are radially movable, guided on both sides in bearing-mounted slotted disks which rotate on an axis and
    - are moved into and out of the slivers (3) on both sides by means of stationary cams, whereby
    - the curve described by the cams at the penetration position or withdrawal position of the fallers (4) into or out of the sliver (3) increases or reduces the distance of the fallers (4) to the axis by means of sinusoidal curve paths (S1, S2) of different lengths,
    - the curve between the penetration position and withdrawal position runs centrically to the axis,
    - the sliver (3) is fed by feed rollers (1) and removed by means of a 3-roller pull-off assembly (2) and
    - that ejector pins (5) in the form of round bolts are fitted between the fallers (4), the ejector pins being guided in an independent groove cam path (AK) and moved by the fallers (4),
    so characterized
    that the ascending sinoid (S1) is at least twice as long as the descending sinoid (S2) and
    that the ejector pins (5) each exhibit two parallel surfaces on their ends with which they are guided in the above curve path (AK) and being so guided cannot rotate around their own axes.
  2. Gill-box frame in accordance with 1, so characterized
    that the curve path (AK) for guiding the ejector pins (5) in the working path section (AB) of the fallers (4) is positioned so that the fiber assembly (3) does not lie on the faller base, but on the ejector pin (5).
  3. Gill-box frame in accordance with 1 and 2, so characterized
    that the curve path (AK) of the ejector pins (5) in the withdrawal area (S2) of the fallers (4) is centrically lengthened by a dimension in whose range the pinpoint is lowered beneath the upper edge of the ejector pins (5).
  4. Gill-box frame in accordance with 1 and 3, so characterized
    that the curve path (AK) of the ejector pins (5) in the return area (RB) moves in a radius, which is eccentrically arranged by a given amount, in such a way that the ejector pins (5) are advanced to the tips of the pins of the fallers (4) by a given amount (h3).
  5. Gill-box frame in accordance with 1 and 3, so characterized
    that all partial sections of the curve path (AK) of the ejector pins (5) are related tangentially or sinusoidally.
EP92919784A 1991-09-23 1992-09-15 Gill box Expired - Lifetime EP0605518B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19914132092 DE4132092C2 (en) 1991-09-23 1991-09-23 Needle bar drafting system
DE4132092 1991-09-23
PCT/DE1992/000810 WO1993006276A1 (en) 1991-09-23 1992-09-15 Gill box

Publications (2)

Publication Number Publication Date
EP0605518A1 EP0605518A1 (en) 1994-07-13
EP0605518B1 true EP0605518B1 (en) 1996-05-22

Family

ID=6441579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919784A Expired - Lifetime EP0605518B1 (en) 1991-09-23 1992-09-15 Gill box

Country Status (3)

Country Link
EP (1) EP0605518B1 (en)
DE (1) DE4132092C2 (en)
WO (1) WO1993006276A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB815862A (en) * 1957-03-04 1959-07-01 Willie Astbury Modifications to gill-box rotor
IT7935872V0 (en) * 1979-05-24 1979-05-24 Cognetex Spa ROTATING HEAD WITH GROOVED REINFORCED GUIDE DISCS FOR COMBS, FOR ROTATING HEAD IRONERS FOR TEXTILE FIBER PROCESSING
IT1129411B (en) * 1980-03-07 1986-06-04 Sant Andrea Novara Officine IRONING MACHINE FOR TEXTILE FIBER TAPES PROVIDED WITH A ROTATING COMB HEAD

Also Published As

Publication number Publication date
EP0605518A1 (en) 1994-07-13
WO1993006276A1 (en) 1993-04-01
DE4132092C2 (en) 1995-12-21
DE4132092A1 (en) 1993-04-01

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