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EP2671977B1 - Cloth for carding needles - Google Patents

Cloth for carding needles Download PDF

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Publication number
EP2671977B1
EP2671977B1 EP13002700.6A EP13002700A EP2671977B1 EP 2671977 B1 EP2671977 B1 EP 2671977B1 EP 13002700 A EP13002700 A EP 13002700A EP 2671977 B1 EP2671977 B1 EP 2671977B1
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EP
European Patent Office
Prior art keywords
clothing
carrier
tensile force
maximum tensile
strip
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.)
Active
Application number
EP13002700.6A
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German (de)
French (fr)
Other versions
EP2671977A3 (en
EP2671977A2 (en
Inventor
Günter Steinbach
Peter Artzt
Volker Jehle
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.)
Graf und Cie AG
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Graf und Cie AG
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Publication date
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Publication of EP2671977A2 publication Critical patent/EP2671977A2/en
Publication of EP2671977A3 publication Critical patent/EP2671977A3/en
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Publication of EP2671977B1 publication Critical patent/EP2671977B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/86—Card clothing; Manufacture thereof not otherwise provided for with flexible non-metallic backing

Definitions

  • the present invention relates to a clothing carrier for flexible or semi-rigid trimmings for processing fiber material.
  • Flexible and semi-rigid trimmings are used in various areas of processing of textile fibers, such as opening or carding of fiber material.
  • a flexible or semi-rigid garnish consists essentially of a clothing carrier and the clothing tips.
  • the clothing tips are formed by wire hooks which are U-shaped.
  • the wire tokens are pierced in a so-called setting process at certain intervals and arrangements through the clothing carrier, the ends of which protrude from the clothing carrier and form the clothing tips.
  • the number of clothing tips per unit area is referred to as peak density.
  • the wire tokens are held in the clothing carrier and have a certain flexibility, depending on their shape and length and the nature of the clothing carrier.
  • Semi-rigid trimmings have the stronger wire hooks than the flexible trimmings. Also, the clothing carrier in semi-rigid sets is more pronounced in terms of less flexible than in flexible trimmings executed. From the prior art, a variety of flexible and semi-rigid sets is known, which differ in shape, material and arrangement of the individual clothing tips and the clothing carrier. The trimmings are usually used in the form of clothing strips, which are mounted on flat surfaces of so-called lids.
  • ⁇ clothing carriers are known from the prior art, which are usually carried out in multiple layers.
  • Known clothing carrier are formed as a fabric composite, which consist of several woven textile layers.
  • clothing carrier which are made of a non-woven or a combination of woven textile layers and nonwoven layers are used in trimmings.
  • All designs of sets in common is the arrangement of the clothing tips for a particular direction.
  • the fiber material to be processed is guided in a certain direction past the clothing and thereby processed by the clothing.
  • the clothing tips are acted upon in one operation with a force in a predetermined direction.
  • This force direction referred to as the working direction, leads to temporary deformations of the wire hooks.
  • the wire hooks are also moved within the clothing carrier, resulting in wear of the clothing wearer. Due to the constant increase in the performance of textile machines, the stress on the trimmings used has also increased.
  • clothing strips for use on a drum of a card are disclosed.
  • the clothing strips are wound onto the drum. This results in the working direction in the longitudinal direction of the clothing strips.
  • the clothing strips are designed as a fabric, as low-stretch materials are used as warp threads to avoid longitudinal expansion by the attacking forces and thus a relaxation of the wound on the drum clothing strips.
  • the processing elements are typically designed as so-called lids, which are arranged over the circumference of the spool at a certain distance.
  • the lids are provided on the tambour-facing side with sets in the form of clothing strips. The strips have a greater length in the axial direction of the spool.
  • the longitudinal direction of the clothing strip respectively the clothing carrier corresponds to the axis of the spool. Perpendicular to the longitudinal direction extends the transverse direction of the clothing strip respectively the clothing carrier.
  • the transverse direction of the clothing carrier thus corresponds to the working direction of a clothing.
  • the determination of the working direction of the clothing and thus the transverse direction of the clothing wearer is important, since the clothing is claimed even in this direction by the carding forces occurring.
  • the clothing in the working direction should have a limited flexibility and still be fixed by the clothing carrier. This means that the garniture should not lose stability within its flexibility due to constant movement during the carding process, but rather a permanently constant flexibility must be ensured.
  • the EP 1 020 548 A2 a clothing in which the clothing carrier is reinforced by a thickening in the direction of the clothing tips.
  • the wire tokens are thus anchored in the clothing carrier to at least the same length as they protrude from the clothing carrier to form the clothing tips.
  • Another embodiment for reinforcing the anchoring of the wire hook discloses the CH 700 925 B1 , It is proposed to embed a reinforcing insert in the clothing carrier in order to allow undisturbed oscillation of the clothing wires with a correspondingly strong anchoring of the same.
  • the disadvantage here is that different layers or materials must be used, resulting in a costly design of the clothing wearer.
  • the invention is an object of the invention to provide a clothing strip, which allows a flexible anchoring of the clothing according to the requirements while having a matched to the forces occurring strength for a wear-resistant anchoring.
  • a clothing strip for flexible or semi-rigid sets for processing of fiber material with a clothing carrier and clothing tips is proposed, wherein the clothing carrier has a longitudinal direction and a transverse direction.
  • the transverse direction corresponds to a working direction of the clothing.
  • the clothing carrier has a maximum tensile force in the longitudinal direction, which is greater than a maximum tensile force in the transverse direction.
  • An improvement of the anchoring of the wire hooks in the clothing carrier is achieved by a reinforcement of the clothing carrier.
  • a reinforcement by a simple compression of the clothing carrier or by the manufacture of the clothing carrier of a material with a higher rigidity counteracts the required flexibility.
  • the clothing tips are deformed by the acting in the direction of the clothing forces, which must be collected on the flexibility (elasticity) of the clothing wearer.
  • the strengths of a clothing wearer in their longitudinal or transverse direction are different due to the structural structure of individual fibers or yarns, wherein yarns are also used in the form of twines.
  • a determination of the strengths in the longitudinal or transverse direction is carried out by the measurement of the so-called maximum tensile force.
  • a clothing carrier should have a maximum tensile force in the longitudinal direction, which is greater than a maximum tensile force in its transverse direction. As a result, a wear-resistant anchoring of the trimmings in the direction of force is achieved while ensuring the necessary flexibility.
  • a woven textile layer usually consists of a composite of warp threads and vertically extending weft threads. Due to the nature of the weaving warp and weft threads have different strengths.
  • the warp thread is a twisted yarn due to manufacturing reasons, but the weft thread is not.
  • the woven textile layers are usually installed in such a way that the warp threads come to lie in the transverse direction and the weft threads in the longitudinal direction of the clothing carrier.
  • a maximum tensile force in the longitudinal direction of the clothing carrier will result, which is less than the maximum tensile force in the transverse direction of the clothing carrier.
  • Remedy can be created by an increase in the thread density in the weft direction or higher quality yarn is used as weft threads.
  • the structure is made of individual fibers.
  • the number or the type of fibers used in the transverse and longitudinal direction the strength of the clothing wearer in the two directions can be influenced.
  • the maximum tensile force of a clothing carrier in the longitudinal direction between 2,000 N and 4,000 N. and in the transverse direction between 1,000 N to 2,000 N.
  • the determination of the maximum tensile forces takes place for fabric respectively woven textile layers according to the standard DIN EN ISO 13934-1 and for nonwovens according to the standard DIN EN 29073 Part 3.
  • the required strengths in the longitudinal and transverse directions of the clothing carrier are achieved by the use of a reinforcing layer.
  • Reinforcing layers can be of various types, for example a grid or wires.
  • the reinforcement layers can also be on the top or bottom the clothing wearer are attached and are not necessarily between the layers of the clothing wearer bring.
  • the strength ratios between the maximum longitudinal tensile force and the maximum lateral tensile force can also be achieved through the use of reinforcing inserts.
  • the reinforcement inserts are to be selected according to the required strength ratios.
  • FIG. 1 a known clothing strip 1 from a clothing carrier 3 with inserted flexible clothing 2 is shown schematically.
  • the clothing carrier 3 is composed of several woven textile layers to form a fabric composite.
  • the individual woven textile layers are held together by binders or by vulcanization with rubber or synthetic rubber. Instead of the shown woven textile layers, a construction of one or more nonwovens is known.
  • On the side of the clothing 2 is on the clothing carrier 3 usually a cover layer or a coating 5 is attached. This coating 5 is used to improve the surface properties with respect to dirt repellence and fiber friction.
  • the pierced through the clothing carrier 3 wire hook 4 are held in the clothing carrier 3 and form with their protruding from the clothing carrier 3 tips The clothing 2.
  • the wire hooks 4 are heavily stressed during operation and are anchored accordingly in the multi-layered clothing carrier 3.
  • the loading of the wire hooks 4 takes place in the use of the clothing strip 1 in the working direction A of the sets 2.
  • the working direction A can, as in FIG. 1 Depending on the application and function of the sets 2.
  • the working direction A always corresponds to the direction of the width B of the clothing carrier 3.
  • Flexible sets 2, as well as semi-rigid sets are usually in strips with a certain width B and a length L made and used in so-called lids.
  • the height H of such a clothing carrier 3 is likewise dependent on the field of use and the necessary anchoring of the clothing 2.
  • FIG. 2 an embodiment of a clothing strip 1 is shown schematically.
  • FIG. 2 shows a clothing carrier 3 in the form of a frequently used clothing strip 1 with a width B and a length L.
  • the pierced through the clothing carrier 3 through the wire hooks 4 are visible with their opposite the clothing tips spine.
  • the clothing strip 1 and thus also the clothing carrier 3 have a longitudinal direction 6 and a transverse direction 7, wherein the transverse direction 7 of the clothing strip 1, respectively the clothing carrier 3, corresponds to the working direction A of the clothing.
  • the force on the clothing takes place in the working direction and thus in the transverse direction 7 of the clothing carrier.
  • the clothing carrier 3 has a maximum tensile force F L in the longitudinal direction 6 and a maximum tensile force F Q in the transverse direction 7.
  • the clothing carrier 3 is designed in its technical properties so that the maximum tensile force F L in the longitudinal direction 6 is greater than the maximum tensile force F Q in the transverse direction. 7

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Looms (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die vorliegende Erfindung betrifft einen Garniturträger für flexible oder halbstarre Garnituren zur Bearbeitung von Fasergut.
Flexible und halbstarre Garnituren werden in verschiedenen Bereichen der Verarbeitung von textilen Fasern eingesetzt, wie Öffnen oder Kardieren von Fasergut. Eine flexible oder halbstarre Garnitur besteht im wesentlichen aus einem Garniturträger und den Garniturspitzen. Die Garniturspitzen werden durch Drahthäkchen gebildet, welche U-förmig ausgebildet sind. Die Drahthäkchen werden in einem sogenannten Setzvorgang in bestimmten Abständen und Anordnungen durch den Garniturträger hindurch gestochen, wobei deren Enden aus dem Garniturträger hervorstehen und die Garniturspitzen bilden. Die Anzahl Garniturspitzen pro Flächeneinheit wird als Spitzendichte bezeichnet. Die Drahthäkchen werden im Garniturträger gehalten und weisen abhängig von ihrer Form und Länge sowie der Beschaffenheit des Garniturträgers eine gewisse Flexibilität auf. Halbstarre Garnituren weisen die stärkeren Drahthäkchen auf als die flexiblen Garnituren. Ebenfalls ist der Garniturträger bei halbstarren Garnituren stärker im Sinne von weniger flexibel als bei flexiblen Garnituren ausgeführt. Aus dem Stand der Technik ist eine Vielfalt von flexiblen und halbstarren Garnituren bekannt, welche sich in Form, Material und Anordnung der einzelnen Garniturspitzen sowie der Garniturträger unterscheiden. Die Garnituren werden meist in Form von Garniturstreifen verwendet, welche auf ebenen Flächen von sogenannten Deckeln befestigt werden.The present invention relates to a clothing carrier for flexible or semi-rigid trimmings for processing fiber material.
Flexible and semi-rigid trimmings are used in various areas of processing of textile fibers, such as opening or carding of fiber material. A flexible or semi-rigid garnish consists essentially of a clothing carrier and the clothing tips. The clothing tips are formed by wire hooks which are U-shaped. The wire tokens are pierced in a so-called setting process at certain intervals and arrangements through the clothing carrier, the ends of which protrude from the clothing carrier and form the clothing tips. The number of clothing tips per unit area is referred to as peak density. The wire tokens are held in the clothing carrier and have a certain flexibility, depending on their shape and length and the nature of the clothing carrier. Semi-rigid trimmings have the stronger wire hooks than the flexible trimmings. Also, the clothing carrier in semi-rigid sets is more pronounced in terms of less flexible than in flexible trimmings executed. From the prior art, a variety of flexible and semi-rigid sets is known, which differ in shape, material and arrangement of the individual clothing tips and the clothing carrier. The trimmings are usually used in the form of clothing strips, which are mounted on flat surfaces of so-called lids.

Aus dem Stand der Technik sind verschiedene Ausführungen von Garniturträgern bekannt, wobei diese in der Regel mehrschichtig ausgeführt sind. Bekannte Garniturträger sind als Gewebeverbund ausgebildet, welche aus mehreren gewobenen Textilschichten bestehen. Auch Garniturträger welche aus einem Vlies oder einer Kombination von gewobenen Textilschichten und Vliesschichten hergestellt sind finden Anwendung in Garnituren.Various designs of clothing carriers are known from the prior art, which are usually carried out in multiple layers. Known clothing carrier are formed as a fabric composite, which consist of several woven textile layers. Also clothing carrier which are made of a non-woven or a combination of woven textile layers and nonwoven layers are used in trimmings.

Allen Ausführungen von Garnituren gemeinsam ist die Anordnung der Garniturspitzen für eine bestimmte Arbeitsrichtung. Das zu verarbeitende Fasergut wird in einer bestimmten Richtung an der Garnitur vorbei geführt und dabei durch die Garnitur bearbeitet. Die Garniturspitzen werden bei einem Arbeitsvorgang mit einer Kraft in eine vorgegebene Richtung beaufschlagt. Diese als Arbeitsrichtung bezeichnete Kraftrichtung führt zu zeitweiligen Verformungen der Drahthäkchen. Entsprechend der Ausführung und Elastizität des Garniturträgers werden die Drahthäkchen auch innerhalb des Garniturträgers bewegt, was zu einem Verschleiss des Garniturträgers führt. Durch die ständige Steigerung der Leistung von Textilmaschinen hat die Beanspruchung der eingesetzten Garnituren ebenfalls zugenommen.All designs of sets in common is the arrangement of the clothing tips for a particular direction. The fiber material to be processed is guided in a certain direction past the clothing and thereby processed by the clothing. The clothing tips are acted upon in one operation with a force in a predetermined direction. This force direction, referred to as the working direction, leads to temporary deformations of the wire hooks. According to the design and elasticity of the clothing carrier, the wire hooks are also moved within the clothing carrier, resulting in wear of the clothing wearer. Due to the constant increase in the performance of textile machines, the stress on the trimmings used has also increased.

In der US 2,619,683 oder der US 1,773,783 werden Garniturstreifen zur Verwendung auf einer Trommel einer Karde offenbart. Die Garniturstreifen werden auf die Trommel aufgewickelt. Dadurch ergibt sich die Arbeitsrichtung in Längsrichtung der Garniturstreifen. Die Garniturstreifen sind als Gewebe ausgeführt, wobei als Kettfäden dehnungsarme Materialien eingesetzt werden, um eine Längsdehnung durch die angreifenden Kräfte und damit eine Lockerung der auf die Trommel aufgewickelten Garniturstreifen zu vermeiden.In the US 2,619,683 or the US 1,773,783 For example, clothing strips for use on a drum of a card are disclosed. The clothing strips are wound onto the drum. This results in the working direction in the longitudinal direction of the clothing strips. The clothing strips are designed as a fabric, as low-stretch materials are used as warp threads to avoid longitudinal expansion by the attacking forces and thus a relaxation of the wound on the drum clothing strips.

Beispielsweise hat die Entwicklung im Bereich der Karden zu einer Hochleistungskarde geführt, welche ein Mehrfaches an Produktionsleistung gegenüber älteren Maschinen erreicht. Dies führte auch zu einer Steigerung der zwischen dem Tambour und den Bearbeitungselementen auftretenden Kardierkräfte. Die Kardierkräfte entstehen zwischen der Garnitur des Tambours und der Garnitur eines Bearbeitungselementes. Die Arbeitsrichtung einer Garnitur und damit die Richtung in welcher die Kardierkräfte wirken, entspricht der Bewegungsrichtung des durch die Garnitur des rotierenden Tambours transportierten Fasergutes. Die Bearbeitungselemente werden typischerweise als sogenannte Deckel ausgeführt, welche über den Umfang des Tambours in einem bestimmten Abstand angeordnet sind. Die Deckel sind auf der, dem Tambour zugewandten Seite mit Garnituren in Form von Garniturstreifen versehen. Die Streifen weisen eine grössere Länge in Achsrichtung des Tambours auf. Damit entspricht die Längsrichtung des Garniturstreifens respektive des Garniturträgers der Achse des Tambours. Senkrecht zur Längsrichtung erstreckt sich die Querrichtung des Garniturstreifens respektive des Garniturträgers. Die Querrichtung des Garniturträgers entspricht somit der Arbeitsrichtung einer Garnitur.For example, development in the area of carding has resulted in a high performance card that achieves a multiple of production performance over older machines. This also led to an increase in carding forces occurring between the spool and the processing elements. The carding forces arise between the clothing of the spool and the clothing of a processing element. The working direction of a clothing and thus the direction in which act the Kardierkräfte, corresponds to the direction of movement of the transported through the clothing of the rotating spool fiber material. The processing elements are typically designed as so-called lids, which are arranged over the circumference of the spool at a certain distance. The lids are provided on the tambour-facing side with sets in the form of clothing strips. The strips have a greater length in the axial direction of the spool. Thus, the longitudinal direction of the clothing strip respectively the clothing carrier corresponds to the axis of the spool. Perpendicular to the longitudinal direction extends the transverse direction of the clothing strip respectively the clothing carrier. The transverse direction of the clothing carrier thus corresponds to the working direction of a clothing.

Die Bestimmung der Arbeitsrichtung der Garnitur und damit der Querrichtung des Garniturträgers ist von Bedeutung, da die Garnitur selbst in dieser Richtung durch die auftretenden Kardierkräfte beansprucht wird. Um eine gute Kardierung zu erhalten, sollte die Garnitur in der Arbeitsrichtung eine begrenzte Flexibilität aufweisen und trotzdem durch den Garniturträger fixiert werden. Das heisst die Garnitur sollte nicht durch eine ständige Bewegung während des Kardiervorganges innerhalb ihrer Flexibilität an Stabilität verlieren, vielmehr ist eine dauerhaft gleichbleibende Flexibilität zu gewährleisten.The determination of the working direction of the clothing and thus the transverse direction of the clothing wearer is important, since the clothing is claimed even in this direction by the carding forces occurring. To obtain a good carding, the clothing in the working direction should have a limited flexibility and still be fixed by the clothing carrier. This means that the garniture should not lose stability within its flexibility due to constant movement during the carding process, but rather a permanently constant flexibility must be ensured.

Der erhöhten Beanspruchung der Garniturträger wurde im Stand der Technik dadurch begegnet, dass die Konstruktion der Garniturträger verbessert wurde. Beispielsweise offenbart die EP 1 020 548 A2 eine Garnitur, bei welcher der Garniturträger durch eine Verdickung in Richtung der Garniturspitzen verstärkt wird. Die Drahthäkchen werden dadurch im Garniturträger auf mindestens der gleichen Länge verankert wie sie aus dem Garniturträger zur Bildung der Garniturspitzen hervorstehen. Durch diese Art der Verankerung der Drahthäkchen wird die freie, über den Garniturträger hinausragende, Länge der Garniturnadeln welche für die Beweglichkeit der Drahthäkchen massgebend ist verkürzt. Die Anwendungsmöglichkeiten werden dadurch eingeschränkt.The increased stress on the clothing carrier was counteracted in the prior art by improving the construction of the clothing carrier. For example, the EP 1 020 548 A2 a clothing in which the clothing carrier is reinforced by a thickening in the direction of the clothing tips. The wire tokens are thus anchored in the clothing carrier to at least the same length as they protrude from the clothing carrier to form the clothing tips. By this type of anchoring of the wire hooks, the free, over the clothing carrier protruding, length of the Garniturnadeln which is decisive for the mobility of the wire tokens is shortened. The possible applications are limited.

Eine weitere Ausführung zur Verstärkung der Verankerung der Drahthäkchen offenbart die CH 700 925 B1 . Darin wird vorgeschlagen eine Verstärkungseinlage in den Garniturträger einzubetten um ein ungestörtes Schwingen der Garniturdrähte bei entsprechend starker Verankerung derselben zu ermöglichen. Nachteilig dabei ist, dass verschiedene Schichten oder Materialien verwendet werden müssen, was zu einer kostspieligen Ausführung des Garniturträgers führt.Another embodiment for reinforcing the anchoring of the wire hook discloses the CH 700 925 B1 , It is proposed to embed a reinforcing insert in the clothing carrier in order to allow undisturbed oscillation of the clothing wires with a correspondingly strong anchoring of the same. The disadvantage here is that different layers or materials must be used, resulting in a costly design of the clothing wearer.

Der Erfindung liegt nun die Aufgabe zugrunde, einen Garniturstreifen zu schaffen, welcher eine den Anforderungen entsprechende flexible Verankerung der Garnitur zulässt und dabei eine auf die auftretenden Kräfte abgestimmte Festigkeit für eine verschleissfeste Verankerung aufweist.The invention is an object of the invention to provide a clothing strip, which allows a flexible anchoring of the clothing according to the requirements while having a matched to the forces occurring strength for a wear-resistant anchoring.

Die Aufgabe wird gelöst durch die Merkmale im kennzeichnenden Teil des unabhängigen Anspruchs.
Zur Lösung der Aufgabe wird ein Garniturstreifen für flexible oder halbstarre Garnituren zur Bearbeitung von Fasergut mit einem Garniturträger und Garniturspitzen vorgeschlagen, wobei der Garniturträger eine Längsrichtung und eine Querrichtung aufweist. Die Querrichtung entspricht einer Arbeitsrichtung der Garnitur. Der Garniturträger weist eine Höchstzugkraft in Längsrichtung auf, welche grösser ist als eine Höchstzugkraft in Querrichtung.The object is solved by the features in the characterizing part of the independent claim.
To solve the problem, a clothing strip for flexible or semi-rigid sets for processing of fiber material with a clothing carrier and clothing tips is proposed, wherein the clothing carrier has a longitudinal direction and a transverse direction. The transverse direction corresponds to a working direction of the clothing. The clothing carrier has a maximum tensile force in the longitudinal direction, which is greater than a maximum tensile force in the transverse direction.

Eine Verbesserung der Verankerung der Drahthäkchen im Garniturträger wird erreicht durch eine Verstärkung des Garniturträgers. Eine Verstärkung durch eine einfache Verdichtung des Garniturträgers oder durch die Fertigung des Garniturträgers aus einem Material mit einer höheren Steifigkeit wirkt jedoch der geforderten Flexibilität entgegen. Die Garniturspitzen werden durch die in Arbeitsrichtung der Garnitur angreifenden Kräfte verformt, was über die Flexibilität (Elastizität) des Garniturträgers aufgefangen werden muss. Grundsätzlich sind die Festigkeiten eines Garniturträgers in deren Längs- oder Querrichtung verschieden aufgrund des strukturellen Aufbaus aus einzelnen Fasern oder Garnen, wobei Garne auch in Form von Zwirnen verwendet werden. Eine Bestimmung der Festigkeiten in Längs- oder Querrichtung erfolgt durch die Messung der sogenannten Höchstzugkraft. In der Fachwelt wird bei der Bestimmung der Höchstzugkräfte unterschieden zwischen einer Gewebeprüfung und einer Vliesstoffprüfung. Dabei erfolgt die Gewebeprüfung nach der Norm DIN EN ISO 13934-1 und die Vliesstoffprüfung nach der Norm DIN EN 29073 Teil 3.An improvement of the anchoring of the wire hooks in the clothing carrier is achieved by a reinforcement of the clothing carrier. However, a reinforcement by a simple compression of the clothing carrier or by the manufacture of the clothing carrier of a material with a higher rigidity counteracts the required flexibility. The clothing tips are deformed by the acting in the direction of the clothing forces, which must be collected on the flexibility (elasticity) of the clothing wearer. Basically, the strengths of a clothing wearer in their longitudinal or transverse direction are different due to the structural structure of individual fibers or yarns, wherein yarns are also used in the form of twines. A determination of the strengths in the longitudinal or transverse direction is carried out by the measurement of the so-called maximum tensile force. In the professional world, a distinction is made between a fabric test and a nonwoven test when determining the maximum tensile forces. The fabric test is carried out in accordance with the standard DIN EN ISO 13934-1 and the nonwoven fabric test in accordance with the standard DIN EN 29073 Part 3.

Um die Verankerung der Garnituren in deren Arbeitsrichtung zu verbessern ist es notwendig, die Verankerung der Drahthäkchen durch quer zur Kraftrichtung liegende Fasern oder Garne zu stärken. Die quer zur Kraftrichtung respektive Bewegungsrichtung der Garnituren liegenden Fasern oder Garne sind massgebend für die Haltekraft der Garnituren. Diese quer zur Kraftrichtung liegenden Fasern oder Garnen erstrecken sich in Längsrichtung des Garniturträgers und bestimmen aufgrund dessen die Höchstzugkraft in Längsrichtung eines Garniturträgers. Um eine gewünschte Flexibilität der Verankerung der Garnituren zu erreichen ist eine Verbindung dieser quer zur Kraftrichtung liegenden Fasern oder Garnen in der quer dazu liegenden Richtung entsprechend schwächer auszuführen. Zur Verankerung von Garnituren sollte demnach ein Garniturträger eine Höchstzugkraft in Längsrichtung aufweisen, welche grösser ist als eine Höchstzugkraft in dessen Querrichtung. Dadurch wird eine verschleissfeste Verankerung der Garnituren in Kraftrichtung bei einer gleichzeitigen Sicherstellung der notwendigen Flexibilität erreicht.In order to improve the anchoring of the trimmings in the working direction, it is necessary to strengthen the anchoring of the wire hooks by transverse to the direction of force fibers or yarns. The transverse to the direction of force respectively direction of movement of the trimmings fibers or yarns are decisive for the holding force of the trimmings. These transverse to the direction of force fibers or yarns extending in the longitudinal direction of the clothing wearer and therefore determine the maximum tensile force in the longitudinal direction of a clothing carrier. In order to achieve a desired flexibility of the anchoring of the trimmings, a connection of these transverse to the direction of force fibers or yarns in the transverse direction to perform correspondingly weaker. For anchoring sets, therefore, a clothing carrier should have a maximum tensile force in the longitudinal direction, which is greater than a maximum tensile force in its transverse direction. As a result, a wear-resistant anchoring of the trimmings in the direction of force is achieved while ensuring the necessary flexibility.

Diese Erkenntnis hat dazu geführt, dass das Verhältnis der Höchstzugkraft in Längsrichtung der Garniturstreifen zur Höchstzugkraft in Querrichtung der Garniturstreifen in einem Bereich von 1.2 bis 3.0 liegen muss um eine bestmögliche Verankerung der Garnituren zu erreichen. Vorteilhafterweise ist der Bereich zwischen 1.5 und 2.5 für das Verhältnis zwischen den Höchstzugkräften anzustreben.This knowledge has led to the ratio of the maximum tensile force in the longitudinal direction of the clothing strip to the maximum tensile force in the transverse direction of the clothing strips in A range of 1.2 to 3.0 must be in order to achieve the best possible anchoring of the trimmings. Advantageously, the range between 1.5 and 2.5 is desirable for the ratio between the maximum tensile forces.

Eine gewobene Textilschicht besteht in der Regel aus einem Verbund von Kettfäden und senkrecht dazu verlaufenden Schussfäden. Bedingt durch die Eigenart des Webvorganges weisen Kettfäden und Schussfäden verschiedene Festigkeiten auf. Bei Verwendung einer oder mehrerer gewobener Textilschichten zum Aufbau eines Garniturträgers ist fabrikationsbedingt der Kettfaden ein gezwirntes Garn, der Schussfaden jedoch nicht. Die gewobenen Textilschichten werden in der Regel derart verbaut, dass die Kettfäden in Querrichtung und die Schussfäden in Längsrichtung des Garniturträgers zu liegen kommen. Dadurch wird ohne weiteres Zutun eine Höchstzugkraft in Längsrichtung des Garniturträgers resultieren, welche geringer ist als die Höchstzugkraft in Querrichtung des Garniturträgers. Abhilfe kann geschaffen werden dadurch dass eine Erhöhung der Fadendichte in Schussrichtung erfolgt oder höherwertiges Garn als Schussfäden verwendet wird.A woven textile layer usually consists of a composite of warp threads and vertically extending weft threads. Due to the nature of the weaving warp and weft threads have different strengths. When using one or more woven textile layers to construct a clothing wearer, the warp thread is a twisted yarn due to manufacturing reasons, but the weft thread is not. The woven textile layers are usually installed in such a way that the warp threads come to lie in the transverse direction and the weft threads in the longitudinal direction of the clothing carrier. As a result, without further action, a maximum tensile force in the longitudinal direction of the clothing carrier will result, which is less than the maximum tensile force in the transverse direction of the clothing carrier. Remedy can be created by an increase in the thread density in the weft direction or higher quality yarn is used as weft threads.

Bei Verwendung eines Vlieses für einen Garniturträger erfolgt der Aufbau aus Einzelfasern. Durch die Anordnung, die Anzahl oder die Art der verwendeten Fasern in Quer- und Längsrichtung kann die Festigkeit des Garniturträgers in den beiden Richtungen beeinflusst werden.When using a fleece for a clothing carrier, the structure is made of individual fibers. By the arrangement, the number or the type of fibers used in the transverse and longitudinal direction, the strength of the clothing wearer in the two directions can be influenced.

Vorteilhafterweise beträgt die Höchstzugkraft eines Garniturträgers in Längsrichtung zwischen 2'000 N und 4'000 N. und in Querrichtung zwischen 1'000 N bis 2'000 N. Die Bestimmung der Höchstzugkräfte erfolgt dabei für Gewebe respektive gewobene Textilschichten nach der Norm DIN EN ISO 13934-1 und für Vliesstoffe nach der Norm DIN EN 29073 Teil 3.Advantageously, the maximum tensile force of a clothing carrier in the longitudinal direction between 2,000 N and 4,000 N. and in the transverse direction between 1,000 N to 2,000 N. The determination of the maximum tensile forces takes place for fabric respectively woven textile layers according to the standard DIN EN ISO 13934-1 and for nonwovens according to the standard DIN EN 29073 Part 3.

In einer weiteren Ausführungsform werden die erforderlichen Festigkeiten in Längs- und Querrichtung des Garniturträgers durch die Verwendung einer Verstärkungsschicht erreicht. Verstärkungsschichten können verschiedenster Bauart sein, beispielsweise ein Gitternetz oder Drähte. Die Verstärkungsschichten können auch auf der Ober- oder Unterseite des Garniturträgers angebracht werden und sind nicht zwingend zwischen die Schichten des Garniturträgers einzubringen.In a further embodiment, the required strengths in the longitudinal and transverse directions of the clothing carrier are achieved by the use of a reinforcing layer. Reinforcing layers can be of various types, for example a grid or wires. The reinforcement layers can also be on the top or bottom the clothing wearer are attached and are not necessarily between the layers of the clothing wearer bring.

Die Herstellung von Garniturträgern aus einem durch Vernadelung und Imprägnierung verfestigten Vlies ist aus dem Stand der Technik ebenso bekannt wie die Herstellung von Garniturträgern aus einem mehrere gewobene Textilschichten umfassenden Gewebeverbund.The production of clothing carriers from a nonwoven consolidated by needling and impregnation is likewise known from the prior art, as is the production of clothing carriers from a fabric composite comprising a plurality of woven textile layers.

Die Festigkeitsverhältnisse zwischen der Höchstzugkraft in Längsrichtung und der Höchstzugkraft in Querrichtung können auch durch die Verwendung von Verstärkungseinlagen erreicht werden. Die Verstärkungseinlagen sind dabei entsprechend den geforderten Festigkeitsverhältnissen auszuwählen.The strength ratios between the maximum longitudinal tensile force and the maximum lateral tensile force can also be achieved through the use of reinforcing inserts. The reinforcement inserts are to be selected according to the required strength ratios.

Im Folgenden wird die Erfindung anhand einer beispielhaften Ausführungsform erklärt und durch Zeichnungen näher erläutert.

Figur 1
Schematische Darstellung eines Querschnitts eines Garniturstreifens mit einer flexiblen Garnitur
Figur 2
Schematische Darstellung einer Ausführung eines Garniturstreifens
In the following the invention will be explained with reference to an exemplary embodiment and explained in more detail by drawings.
FIG. 1
Schematic representation of a cross section of a clothing strip with a flexible clothing
FIG. 2
Schematic representation of an embodiment of a clothing strip

In Figur 1 ist ein bekannter Garniturstreifen 1 aus einem Garniturträger 3 mit eingesetzter flexibler Garnitur 2 schematisch dargestellt. Der Garniturträger 3 ist aus mehreren gewobenen Textilschichten zu einem Gewebeverbund zusammengesetzt. Die einzelnen gewobenen Textilschichten werden durch Bindemittel oder durch Vulkanisieren mit Kautschuk oder synthetischem Kautschuk zusammengehalten. Anstelle der gezeigten gewobenen Textilschichten ist auch ein Aufbau aus einem oder mehreren Vliesstoffen bekannt. Auf der Seite der Garnitur 2 ist auf dem Garniturträger 3 in der Regel eine Deckschicht oder ein Überzug 5 angebracht. Dieser Überzug 5 dient der Verbesserung der Oberflächeneigenschaften bezüglich Schmutzabweisung und Faserreibung. Die durch den Garniturträger 3 durchgestochenen Drahthäkchen 4 werden im Garniturträger 3 gehalten und bilden mit ihren aus dem Garniturträger 3 herausragenden Spitzen die Garnitur 2. Die Drahthäkchen 4 werden im Betrieb stark beansprucht und sind entsprechend im mehrlagigen Garniturträger 3 verankert. Die Beanspruchung der Drahthäkchen 4 erfolgt dabei im Einsatz des Garniturstreifens 1 in Arbeitsrichtung A der Garnituren 2. Die Arbeitsrichtung A kann, wie in Figur 1 gezeigt, entgegen oder auch mit den Drahthäkchen 4 erfolgen, je nach Einsatzgebiet und Funktion der Garnituren 2. Die Arbeitsrichtung A entspricht jedoch immer der Richtung der Breite B des Garniturträgers 3. Flexible Garnituren 2, wie auch halbstarre Garnituren, werden meist in Streifen mit einer bestimmten Breite B und einer Länge L gefertigt und in so genannten Deckeln eingesetzt. Die Höhe H eines derartigen Garniturträgers 3 ist ebenfalls abhängig vom Einsatzgebiet und der notwendigen Verankerung der Garnitur 2.In FIG. 1 a known clothing strip 1 from a clothing carrier 3 with inserted flexible clothing 2 is shown schematically. The clothing carrier 3 is composed of several woven textile layers to form a fabric composite. The individual woven textile layers are held together by binders or by vulcanization with rubber or synthetic rubber. Instead of the shown woven textile layers, a construction of one or more nonwovens is known. On the side of the clothing 2 is on the clothing carrier 3 usually a cover layer or a coating 5 is attached. This coating 5 is used to improve the surface properties with respect to dirt repellence and fiber friction. The pierced through the clothing carrier 3 wire hook 4 are held in the clothing carrier 3 and form with their protruding from the clothing carrier 3 tips The clothing 2. The wire hooks 4 are heavily stressed during operation and are anchored accordingly in the multi-layered clothing carrier 3. The loading of the wire hooks 4 takes place in the use of the clothing strip 1 in the working direction A of the sets 2. The working direction A can, as in FIG. 1 Depending on the application and function of the sets 2. The working direction A, however, always corresponds to the direction of the width B of the clothing carrier 3. Flexible sets 2, as well as semi-rigid sets are usually in strips with a certain width B and a length L made and used in so-called lids. The height H of such a clothing carrier 3 is likewise dependent on the field of use and the necessary anchoring of the clothing 2.

In Figur 2 ist eine Ausführung eines Garniturstreifens 1 schematisch dargestellt. Figur 2 zeigt einen Garniturträger 3 in Form eines häufig verwendeten Garniturstreifens 1 mit einer Breite B und einer Länge L. Die durch den Garniturträger 3 hindurch gestochenen Drahthäkchen 4 sind mit ihren den Garniturspitzen gegenüber liegenden Rücken sichtbar. Der Garniturstreifen 1 und damit auch der Garniturträger 3 weisen eine Längsrichtung 6 und eine Querrichtung 7 auf, wobei die Querrichtung 7 des Garniturstreifens 1, respektive des Garniturträgers 3, der Arbeitsrichtung A der Garnitur entspricht. Die Krafteinwirkung auf die Garnitur erfolgt in Arbeitsrichtung und damit in Querrichtung 7 des Garniturträgers 3.
Der Garniturträger 3 weist eine Höchstzugkraft FL in Längsrichtung 6 und eine Höchstzugkraft FQ in Querrichtung 7 auf. Der Garniturträger 3 ist in seinen technischen Eigenschaften so angelegt, dass die Höchstzugkraft FL in Längsrichtung 6 grösser ist als die Höchstzugkraft FQ in Querrichtung 7.In FIG. 2 an embodiment of a clothing strip 1 is shown schematically. FIG. 2 shows a clothing carrier 3 in the form of a frequently used clothing strip 1 with a width B and a length L. The pierced through the clothing carrier 3 through the wire hooks 4 are visible with their opposite the clothing tips spine. The clothing strip 1 and thus also the clothing carrier 3 have a longitudinal direction 6 and a transverse direction 7, wherein the transverse direction 7 of the clothing strip 1, respectively the clothing carrier 3, corresponds to the working direction A of the clothing. The force on the clothing takes place in the working direction and thus in the transverse direction 7 of the clothing carrier. 3
The clothing carrier 3 has a maximum tensile force F L in the longitudinal direction 6 and a maximum tensile force F Q in the transverse direction 7. The clothing carrier 3 is designed in its technical properties so that the maximum tensile force F L in the longitudinal direction 6 is greater than the maximum tensile force F Q in the transverse direction. 7

LegendeLegend

11
Garniturstreifenclothing strips
22
Garniturset
33
Garniturträgerclothing support
44
Drahthäkchenwire hooks
55
Deckschichttopcoat
66
Längsrichtunglongitudinal direction
77
Querrichtungtransversely
AA
Arbeitsrichtungworking direction
BB
Breite des GarniturträgersWidth of the clothing carrier
HH
Höhe des GarniturträgersHeight of the clothing carrier
LL
Länge des GarniturträgersLength of the clothing carrier
FL F L
Höchstzugkraft in LängsrichtungMaximum tensile force in the longitudinal direction
FQ F Q
Höchstzugkraft in QuerrichtungMaximum tensile force in the transverse direction

Claims (8)

  1. A clothing strip (1) for flexible or semi-rigid clothings (2) for processing fiber material with a clothing carrier (3) and wire hooks (4), wherein the clothing carrier (3) has a longitudinal direction (6) and a transverse direction (7), and the transverse direction (7) corresponds to a working direction (A) of the clothing (2), characterized in that the clothing carrier (3) exhibits a maximum tensile force (FL) in the longitudinal direction (6) which is greater than a maximum tensile force (FQ) in the transverse direction(7).
  2. The clothing strip (1) according to claim 1, characterized in that the maximum tensile force (FL) in the longitudinal direction (6) to the maximum tensile force (FQ) in the transverse direction (7) corresponds to a ratio of from 1.2 to 3.0.
  3. The clothing strip (1) according to claim 1 or claim 2, characterized in that the maximum tensile force (FL) in the longitudinal direction (6) to the maximum tensile force (FQ) in the transverse direction (7) corresponds to a ratio of from 1.5 to 2.5.
  4. The clothing strip (1) according to any one of the claims 1 to 3, characterized in that the maximum tensile force (FL) in the longitudinal direction (6) is 2,000 N to 4,000 N.
  5. The clothing strip (1) according to any one of the claims 1 to 4, characterized in that the maximum tensile force (FQ) in the transverse direction (7) is 1,000 N to 2,000 N.
  6. The clothing strip (1) according to any one of the claims 1 to 5, characterized in that the clothing carrier (3) has at least one integrated reinforcement layer.
  7. The clothing strip (1) according to any one of the claims 1 to 6, characterized in that the clothing carrier (3) is a nonwoven that is strengthened through needling and impregnating.
  8. The clothing strip (1) according to any one of the claims 1 to 6, characterized in that the clothing carrier (3) is a fabric composite comprising a plurality of woven textile layers.
EP13002700.6A 2012-06-04 2013-05-24 Cloth for carding needles Active EP2671977B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00764/12A CH706587A1 (en) 2012-06-04 2012-06-04 Clothing support.

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EP2671977A3 EP2671977A3 (en) 2014-02-12
EP2671977B1 true EP2671977B1 (en) 2016-09-07

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US (1) US8943654B2 (en)
EP (1) EP2671977B1 (en)
CN (1) CN103451780B (en)
BR (1) BR102013011522A8 (en)
CH (1) CH706587A1 (en)

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CN107338511A (en) * 2016-09-28 2017-11-10 桐乡守敬应用技术研究院有限公司 A kind of pin cloth
JP6967258B2 (en) * 2016-11-25 2021-11-17 株式会社荒木製作所 Method of manufacturing needle cloth

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EP2671977A3 (en) 2014-02-12
CH706587A1 (en) 2013-12-13
BR102013011522A8 (en) 2021-04-20
US8943654B2 (en) 2015-02-03
US20140020211A1 (en) 2014-01-23
CN103451780B (en) 2018-02-06
CN103451780A (en) 2013-12-18
BR102013011522A2 (en) 2015-06-30
EP2671977A2 (en) 2013-12-11

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