EP2058421A2 - Top roller carrying and loading arm - Google Patents

Top roller carrying and loading arm Download PDF

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Publication number
EP2058421A2
EP2058421A2 EP08017471A EP08017471A EP2058421A2 EP 2058421 A2 EP2058421 A2 EP 2058421A2 EP 08017471 A EP08017471 A EP 08017471A EP 08017471 A EP08017471 A EP 08017471A EP 2058421 A2 EP2058421 A2 EP 2058421A2
Authority
EP
European Patent Office
Prior art keywords
loading arm
compression springs
upper roller
roller carrying
loading
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.)
Withdrawn
Application number
EP08017471A
Other languages
German (de)
French (fr)
Other versions
EP2058421A3 (en
Inventor
Alfred Niedermayer
Jürgen Schlegel
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Oerlikon Textile Components GmbH
Oerlikon Accotex Texparts GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile Components GmbH, Oerlikon Accotex Texparts GmbH filed Critical Oerlikon Textile Components GmbH
Publication of EP2058421A2 publication Critical patent/EP2058421A2/en
Publication of EP2058421A3 publication Critical patent/EP2058421A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/56—Supports for drafting elements
    • D01H5/565—Top roller arms
    • 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
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/46—Loading arrangements
    • D01H5/50—Loading arrangements using springs
    • D01H5/505—Loading arrangements using springs for top roller arms

Definitions

  • the present invention relates to a top roller supporting and loading arm according to the preamble of claim 1.
  • Drafting systems for spinning machines usually have top roller carrying and loading arms, in which the upper rollers are preferably individually resilient by means of resiliently elastic loading elements. To obtain favorable operating conditions, the loading pressure at the individual upper rollers can be adjusted and thus adapted to the respective spinning conditions.
  • top roller support and loading arm is from the DE 42 43 292 C1 known.
  • the top roller carrying and loading arm has holding devices for receiving top rollers, wherein the individual holding devices are loaded by spring forces of a helical compression spring to press the top rollers with a predetermined force against corresponding bottom rollers of the drafting system.
  • the pressure setting to adapt to different load levels of the top rollers on the holding device is effected by a switching eccentric to be actuated, via which the bias of the respective helical compression spring is adjustable.
  • the helical compression springs manufactured from a spring wire wound up into a spiral have, due to the production, no flat ground contact surfaces despite the abrasion of the horizontally outgoing wire ends.
  • Object of the present invention is to further develop a top roller support and loading arm such that a simplification of the assembly is achieved.
  • the compression spring is designed as a plastic molded part.
  • a significant advantage of running as a plastic molded part compression spring is the variety of shape that can be achieved in the manufacture of the compression spring made of plastic, whereby the compression spring is adaptable to the respective installation space.
  • the spring formed as a plastic molded part against springs made of metal has the advantage of lower weight, ease of manufacture, existing damping properties of the plastic and a clean handling.
  • the compression spring on two mutually parallel contact surfaces which are executed plan and serve to absorb the pressure applied by the upper roller support and loading arm pressure forces.
  • the compression springs of the top rollers may have different outer contours.
  • the compression springs can be easily adapted to the spatial conditions of the installation space in the upper roller support and loading arm.
  • the compression springs may have different axial expansions.
  • the compression springs may have different diameters.
  • the compression springs may have different moduli of elasticity.
  • the pressure forces to be applied to the input roller, center roller or output roller can be variably preset. Different axial expansions of the compression springs can be matched when using the same plastic for producing the compression springs for the input roller, center roller or output roller by the height or the diameter of the compression springs vary.
  • the compression springs can be cylindrical.
  • the compression springs may have a circular cylindrical cross section, as well as a square or cuboidal cross section.
  • compression springs can be provided at their end faces with recesses. These serve the simple arrangement and attachment to the upper roller support and loading arm, for example, by cylindrical pins or screws partially projecting into the compression springs.
  • the compression springs may also be formed as a hollow cylinder.
  • one or more of the compression springs can be designed in several parts.
  • the compression spring in the loading direction may have a multi-layered construction, which is based on the use of plastics with different damping characteristics, which are placed on each other and thus forms a compression spring with certain damping properties.
  • the compression springs may each have different colors.
  • the different colors of the individual compression springs are based on their assignment to the holding devices of the input roller, center roller and output roller. This simplifies the installation of the same type of compression springs in the upper roller support and loading arm during assembly.
  • the respective assignment of the compression springs is done on the basis of a definable color coding.
  • FIG. 1 shows a partial sectional view of a top roller carrying and loading arm 1 of a spinning machine drafting system with adjustable loading elements for top rollers 7, 8, 9.
  • the top roller support and loading arm 1 is pivotally mounted in a held on a stationary support rod 2 support 3 and a not shown operating lever operable.
  • the loading elements comprise links 4, 5, 6 for the upper rollers arranged in each case as output roller 7, as center roller 8 and as input roller 9.
  • the upper rollers of the drafting system are designed as twin rollers and with their axes in the shots of Handlebar 4, 5, 6 stored.
  • the links 4, 5, 6 are loaded by resilient compression springs 11, 12, 13 in the closed position of the upper roller support and loading arm 1.
  • the compression springs 11, 12, 13 are made of plastic and are substantially cylindrical.
  • the compression springs 11, 12, 13 formed as plastic moldings have mutually parallel planar contact surfaces, which allow a non-directional installation in the upper roller support and loading arm 1.
  • the properties of the compression springs 11, 12, 13 are significantly determined by the modulus of elasticity, ie thus by the plastic material from which they are made. According to the applied load on the respective link 4, 5, 6, the respective compression springs 11, 12, 13 may consist of different plastics or have different contours, diameters or axial expansions in the loading direction.
  • FIG. 2 shows the compression spring 13, which has a substantially barrel-shaped contour. At the end faces recesses 15 are provided, which serve to receive bolts or screws for attachment to the handlebar 4 and the upper roller support and loading arm 1.
  • Fig. 3 a sectional view of a hollow cylindrical compression spring 12.
  • the compression spring 12 can be dispensed with the receptacles 15.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

The upper roller support and tensioning arm (1) has guides (4,5,6) for receiving upper rollers (7,8,9) at a stretching unit. A fixture device is provided which is assigned with an elastic pressure springs (11,12,13) for loading the appropriate upper rollers. The pressure spring is carried out as plastic shaped part. The pressure springs of the upper rollers have different outer contours and have axial expansions deviating from each other.

Description

Die vorliegende Erfindung betrifft einen Oberwalzen-Trag- und Belastungsarm gemäß dem Oberbegriff des Anspruches 1.The present invention relates to a top roller supporting and loading arm according to the preamble of claim 1.

Streckwerke für Spinnereimaschinen weisen üblicherweise Oberwalzen-Trag- und Belastungsarme auf, bei denen die Oberwalzen vorzugsweise einzeln mittels federnd elastischer Belastungselemente belastbar sind. Zum Erlangen günstiger Betriebsbedingungen kann der Belastungsdruck an den einzelnen Oberwalzen eingestellt und so an die jeweiligen Spinnbedingungen angepasst werden.Drafting systems for spinning machines usually have top roller carrying and loading arms, in which the upper rollers are preferably individually resilient by means of resiliently elastic loading elements. To obtain favorable operating conditions, the loading pressure at the individual upper rollers can be adjusted and thus adapted to the respective spinning conditions.

Ein derartiger Oberwalzen-Trag- und Belastungsarm ist aus der DE 42 43 292 C1 bekannt. Der Oberwalzen-Trag- und Belastungsarm weist Halteeinrichtungen zur Aufnahme von Oberwalzen auf, wobei die einzelnen Halteeinrichtungen durch Federkräfte einer Schraubendruckfeder belastet werden, um die Oberwalzen mit einer vorgebbaren Kraft gegen korrespondierende Unterwalzen des Streckwerkes zu pressen. Die Druckeinstellung zur Anpassung an verschiedene Belastungsstufen der Oberwalzen an der Halteeinrichtung erfolgt durch einen zu betätigenden Schaltexzenter, über den die Vorspannung der jeweiligen Schraubendruckfeder einstellbar ist.Such a top roller support and loading arm is from the DE 42 43 292 C1 known. The top roller carrying and loading arm has holding devices for receiving top rollers, wherein the individual holding devices are loaded by spring forces of a helical compression spring to press the top rollers with a predetermined force against corresponding bottom rollers of the drafting system. The pressure setting to adapt to different load levels of the top rollers on the holding device is effected by a switching eccentric to be actuated, via which the bias of the respective helical compression spring is adjustable.

Als nachteilig erweist sich, dass die aus einem zu einer Spirale aufgewickelten Federdraht gefertigten Schraubendruckfedern fertigungsbedingt trotz des Abschleifens der horizontal auslaufenden Drahtenden keine ebenen Aufstandsflächen aufweisen. Somit ist es beim Einbau in das Streckwerk erforderlich, die Schraubendruckfeder gerichtet einzubauen, um eine Schräglage sowie ein Verkanten der Schraubendruckfeder gegenüber den Aufstandsflächen der Haltereinrichtung zu vermeiden. Dies führt zu einem entsprechend erhöhtem Aufwand bei der Montage des Streckwerks.It proves to be disadvantageous that the helical compression springs manufactured from a spring wire wound up into a spiral have, due to the production, no flat ground contact surfaces despite the abrasion of the horizontally outgoing wire ends. Thus, when installed in the drafting system, it is necessary to install the helical compression spring directed to an inclined position and a tilting of the helical compression spring against the To avoid contact surfaces of the holder device. This leads to a correspondingly increased effort in the assembly of the drafting system.

Aufgabe der vorliegenden Erfindung ist es, einen Oberwalzen-Trag- und Belastungsarm derart weiterzuentwickeln, dass eine Vereinfachung der Montage erreicht wird.Object of the present invention is to further develop a top roller support and loading arm such that a simplification of the assembly is achieved.

Dies wird erfindungsgemäß durch das kennzeichnende Merkmal des Anspruches 1 gelöst.This is achieved by the characterizing feature of claim 1.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Further advantageous embodiments of the invention are the subject of the dependent claims.

Gemäß Anspruch 1 wird vorgeschlagen, dass die Druckfeder als Kunststoffformteil ausgeführt ist. Ein wesentlicher Vorteil der als Kunststoffformteil ausgeführten Druckfeder besteht in der vielfältigen Formgebung, die bei der Herstellung der Druckfeder aus Kunststoff erreichbar ist, wodurch die Druckfeder an den jeweiligen Einbauraum anpassbar ist. Des Weiteren weist die als Kunststoffformteil ausgebildete Druckfeder gegenüber Federn aus Metall den Vorteil des geringeren Gewichts, die einfache Herstellbarkeit, vorhandene Dämpfungseigenschaften des Kunststoffes sowie eine saubere Handhabung auf. Zur Vereinfachung des Einbaus weist die Druckfeder zwei zueinander parallele Aufstandsflächen auf, die plan ausgeführt sind und die der Aufnahme der vom Oberwalzen-Trag- und Belastungsarm aufgebrachten Druckkräfte dienen.According to claim 1 it is proposed that the compression spring is designed as a plastic molded part. A significant advantage of running as a plastic molded part compression spring is the variety of shape that can be achieved in the manufacture of the compression spring made of plastic, whereby the compression spring is adaptable to the respective installation space. Furthermore, the spring formed as a plastic molded part against springs made of metal has the advantage of lower weight, ease of manufacture, existing damping properties of the plastic and a clean handling. To simplify installation, the compression spring on two mutually parallel contact surfaces, which are executed plan and serve to absorb the pressure applied by the upper roller support and loading arm pressure forces.

Vorzugsweise können die Druckfedern der Oberwalzen unterschiedliche Außenkonturen aufweisen. Somit können die Druckfedern in einfacher Weise an die räumlichen Gegebenheiten des Einbauraumes im Oberwalzen-Trag- und Belastungsarm angepasst werden.Preferably, the compression springs of the top rollers may have different outer contours. Thus, the compression springs can be easily adapted to the spatial conditions of the installation space in the upper roller support and loading arm.

Des Weiteren können die Druckfedern voneinander abweichende axiale Ausdehnungen aufweisen. Ebenso können die Druckfedern unterschiedliche Durchmesser aufweisen. Insbesondere können die Druckfedern unterschiedliche Elastizitätsmodule aufweisen. Somit lassen sich die auf Eingangswalze, Mittelwalze oder Ausgangswalze aufzubringenden Druckkräfte variabel voreinstellen. Unterschiedliche axiale Ausdehnungen der Druckfedern lassen sich bei der Verwendung des gleichen Kunststoffes zur Herstellung der Druckfedern für die Eingangswalze, Mittelwalze oder Ausgangswalze aufeinander abstimmen, indem die Höhe oder die Durchmesser der Druckfedern variieren.Furthermore, the compression springs may have different axial expansions. Likewise, the compression springs may have different diameters. In particular, the compression springs may have different moduli of elasticity. Thus, the pressure forces to be applied to the input roller, center roller or output roller can be variably preset. Different axial expansions of the compression springs can be matched when using the same plastic for producing the compression springs for the input roller, center roller or output roller by the height or the diameter of the compression springs vary.

Insbesondere können die Druckfedern zylinderförmig ausgeführt sein. Hierzu können die Druckfedern einen kreiszylinderförmigen Querschnitt aufweisen, ebenso wie einen quadratischen oder quaderförmigen Querschnitt.In particular, the compression springs can be cylindrical. For this purpose, the compression springs may have a circular cylindrical cross section, as well as a square or cuboidal cross section.

Weiterhin können die Druckfedern an ihren Stirnflächen mit Ausnehmungen versehen sein. Diese dienen der einfachen Anordnung und Befestigung am Oberwalzen-Trag- und Belastungsarm, indem beispielsweise zylinderförmige Stifte oder Schrauben abschnittsweise in die Druckfedern hineinragen.Furthermore, the compression springs can be provided at their end faces with recesses. These serve the simple arrangement and attachment to the upper roller support and loading arm, for example, by cylindrical pins or screws partially projecting into the compression springs.

Alternativ können die Druckfedern auch hohlzylindrisch ausgebildet sein.Alternatively, the compression springs may also be formed as a hollow cylinder.

Vorteilhafterweise kann eine oder mehrere der Druckfedern mehrteilig ausgeführt sein. Hierzu kann die Druckfeder in Belastungsrichtung einen mehrschichtigen Aufbau aufweisen, der auf der Verwendung von Kunststoffen mit unterschiedlichen Dämpfungscharakteristiken beruht, die aufeinander aufgesetzt werden und so eine Druckfeder mit bestimmten Dämpfungseigenschaften bildet.Advantageously, one or more of the compression springs can be designed in several parts. For this purpose, the compression spring in the loading direction may have a multi-layered construction, which is based on the use of plastics with different damping characteristics, which are placed on each other and thus forms a compression spring with certain damping properties.

Bevorzugt können die Druckfedern jeweils unterschiedliche Farben aufweisen. Die unterschiedliche Färbung der einzelnen Druckfedern orientiert sich an ihrer Zuordnung zu den Halteinrichtungen der Eingangswalze, Mittelwalze und Ausgangswalze. Dies vereinfacht bei der Montage den Einbau von in ihrer Form gleichartigen Druckfedern im Oberwalzen-Trag- und Belastungsarm. Die jeweilige Zuordnung der Druckfedern erfolgt an Hand einer festlegbaren Farbkodierung.Preferably, the compression springs may each have different colors. The different colors of the individual compression springs are based on their assignment to the holding devices of the input roller, center roller and output roller. This simplifies the installation of the same type of compression springs in the upper roller support and loading arm during assembly. The respective assignment of the compression springs is done on the basis of a definable color coding.

Die Erfindung ist nachfolgend anhand von in den Zeichnungen darstellten Ausführungsbeispielen näher erläutert.The invention is explained in more detail with reference to exemplary embodiments illustrated in the drawings.

Es zeigen:

Fig. 1
eine Teilschnittansicht eines Oberwalzen-Trag- und Belastungsarmes;
Fig. 2
eine Schnittansicht einer Druckfeder;
Fig. 3
eine Schnittansicht einer hohlzylindrischen Druckfeder;
Fig. 4
eine mehrteilige Druckfeder.
Show it:
Fig. 1
a partial sectional view of a top roller carrying and loading arm;
Fig. 2
a sectional view of a compression spring;
Fig. 3
a sectional view of a hollow cylindrical compression spring;
Fig. 4
a multi-part compression spring.

Die Darstellung in Fig. 1 zeigt eine Teilschnittansicht eines Oberwalzen-Trag- und Belastungsarmes 1 eines Spinnmaschinen-Streckwerkes mit verstellbaren Belastungselementen für Oberwalzen 7, 8, 9. Der Oberwalzen-Trag- und Belastungsarm 1 ist schwenkbar in einer an einer ortsfesten Tragstange 2 gehaltenen Stütze 3 gelagert und über einen nicht dargestellten Bedienungshebel betätigbar. Die Belastungselemente umfassen Lenker 4, 5, 6 für die jeweils als Ausgangswalze 7, als Mittelwalze 8 und als Eingangswalze 9 angeordneten Oberwalzen. Die Oberwalzen des Streckwerkes sind als Zwillingswalzen ausgebildet und mit ihren Achsen in den Aufnahmen der Lenker 4, 5, 6 gelagert. Die Lenker 4, 5, 6 werden durch federnd elastische Druckfedern 11, 12, 13 in geschlossener Position des Oberwalzen-Trag- und Belastungsarmes 1 belastet.The representation in Fig. 1 shows a partial sectional view of a top roller carrying and loading arm 1 of a spinning machine drafting system with adjustable loading elements for top rollers 7, 8, 9. The top roller support and loading arm 1 is pivotally mounted in a held on a stationary support rod 2 support 3 and a not shown operating lever operable. The loading elements comprise links 4, 5, 6 for the upper rollers arranged in each case as output roller 7, as center roller 8 and as input roller 9. The upper rollers of the drafting system are designed as twin rollers and with their axes in the shots of Handlebar 4, 5, 6 stored. The links 4, 5, 6 are loaded by resilient compression springs 11, 12, 13 in the closed position of the upper roller support and loading arm 1.

Die Druckfedern 11, 12, 13 bestehen aus Kunststoff und sind im Wesentlichen zylinderförmig ausgebildet. Die als Kunststoffformteile ausgebildeten Druckfedern 11, 12, 13 weisen zueinander parallele ebene Aufstandsflächen auf, die einen ungerichteten Einbau in den Oberwalzen-Trag- und Belastungsarm 1 ermöglichen. Die Eigenschaften der Druckfedern 11, 12, 13 werden maßgeblich durch den Elastizitätsmodul, also somit durch das Kunststoffmaterial aus dem sie hergestellt werden, bestimmt. Entsprechend der aufzubringenden Belastung auf den jeweiligen Lenker 4, 5, 6 können die jeweiligen Druckfedern 11, 12, 13 aus verschiedenen Kunststoffen bestehen oder voneinander abweichende Konturen, Durchmesser oder axiale Ausdehnungen in Belastungsrichtung aufweisen.The compression springs 11, 12, 13 are made of plastic and are substantially cylindrical. The compression springs 11, 12, 13 formed as plastic moldings have mutually parallel planar contact surfaces, which allow a non-directional installation in the upper roller support and loading arm 1. The properties of the compression springs 11, 12, 13 are significantly determined by the modulus of elasticity, ie thus by the plastic material from which they are made. According to the applied load on the respective link 4, 5, 6, the respective compression springs 11, 12, 13 may consist of different plastics or have different contours, diameters or axial expansions in the loading direction.

Die Darstellung in Fig. 2 zeigt die Druckfeder 13, welche eine im Wesentlichen tonnenförmige Kontur aufweist. An den Stirnflächen sind Ausnehmungen 15 vorgesehen, die der Aufnahme von Bolzen oder Schrauben zur Befestigung am Lenker 4 beziehungsweise am Oberwalzen-Trag- und Belastungsarm 1 dienen.The representation in Fig. 2 shows the compression spring 13, which has a substantially barrel-shaped contour. At the end faces recesses 15 are provided, which serve to receive bolts or screws for attachment to the handlebar 4 and the upper roller support and loading arm 1.

Denkbar ist aber auch ein mehrschichtiger Aufbau der Druckfedern 11, 12, 13, wenn in Belastungsrichtung mehrere Segmente 11a, 11b hintereinander angeordnet werden, die aus verschiedenen Kunststoffen bestehen und die Druckfedern 11, 12, 13 ausbilden, wie am Beispiel der Druckfeder 11 in Fig. 4 dargestellt. Um bei gleicher Formgebung und gleichen Abmessungen der Druckfedern 11, 12, 13 dennoch den richtigen Einbau respektive die richtige Zuordnung zu den Oberwalzen zu gewährleisten, können die Druckfedern 11, 12, 13 unterschiedliche Farben aufweisen, die die Dämpfungseigenschaften charakterisieren.It is also conceivable, however, a multilayer structure of the compression springs 11, 12, 13, when in the loading direction a plurality of segments 11a, 11b are arranged one behind the other, which consist of different plastics and the compression springs 11, 12, 13 form, as the example of the compression spring 11 in Fig. 4 shown. In order to ensure the correct installation and the correct assignment to the top rollers with the same shape and the same dimensions of the compression springs 11, 12, 13, the compression springs 11, 12, 13 have different colors that characterize the damping properties.

Weiterhin zeigt Fig. 3 eine Schnittansicht einer hohlzylindrischen Druckfeder 12. Bei dieser Ausführungsform der Druckfeder 12 kann auf die Aufnehmungen 15 verzichtet werden.Further shows Fig. 3 a sectional view of a hollow cylindrical compression spring 12. In this embodiment, the compression spring 12 can be dispensed with the receptacles 15.

Claims (11)

Oberwalzen-Trag- und Belastungsarm (1) mit Lenkern (4, 5, 6) zur Aufnahme von Oberwalzen (7, 8, 9) an einem Streckwerk, wobei den Halteeinrichtungen (4, 5, 6) eine federnd elastische Druckfeder (11, 12, 13) zur Belastung der zugehörigen Oberwalze (7, 8, 9) zugeordnet ist,
dadurch gekennzeichnet,
dass die Druckfeder (11, 12, 13) als Kunststoffformteil ausgeführt ist.Upper roller carrying and loading arm (1) with guide rods (4, 5, 6) for receiving upper rollers (7, 8, 9) on a drafting device, wherein the holding devices (4, 5, 6) comprise a resiliently elastic compression spring (11, 12, 13) is assigned to the load of the associated upper roller (7, 8, 9),
characterized,
that the compression spring (11, 12, 13) is designed as a plastic molded part. Oberwalzen-Trag- und Belastungsarm (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) der Oberwalzen (7, 8, 9) unterschiedliche Außenkonturen aufweisen.Upper roller carrying and loading arm (1) according to claim 1, characterized in that the compression springs (11, 12, 13) of the upper rollers (7, 8, 9) have different outer contours. Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) voneinander abweichende axiale Ausdehnungen aufweisen.Upper roller carrying and loading arm (1) according to one of claims 1 or 2, characterized in that the compression springs (11, 12, 13) have different axial extensions from each other. Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) unterschiedliche Durchmesser aufweisen.Upper roller carrying and loading arm (1) according to one of claims 1 to 3, characterized in that the compression springs (11, 12, 13) have different diameters. Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) unterschiedliche Elastizitätsmodule aufweisen.Upper roller carrying and loading arm (1) according to one of claims 1 to 4, characterized in that the compression springs (11, 12, 13) have different moduli of elasticity. Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) zylinderförmig ausgeführt sind.Upper roller carrying and loading arm (1) according to one of claims 1 to 5, characterized in that the compression springs (11, 12, 13) are cylindrical. Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) an ihren Stirnflächen mit Ausnehmungen (15) versehen sind.Upper roller carrying and loading arm (1) according to one of claims 1 to 6, characterized in that the compression springs (11, 12, 13) are provided at their end faces with recesses (15). Oberwalzen-Trag- und Belastungsarm (1) nach Anspruch 6, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) hohlzylindrisch ausgebildet sind.Upper roller carrying and loading arm (1) according to claim 6, characterized in that the compression springs (11, 12, 13) are formed as a hollow cylinder. Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass eine oder mehrere der Druckfedern (11, 12, 13) mehrteilig ausgeführt ist.Upper roller carrying and loading arm (1) according to one of claims 1 to 8, characterized in that one or more of the compression springs (11, 12, 13) is designed in several parts. Oberwalzen-Trag- und Belastungsarm (1) nach Anspruch 9, dadurch gekennzeichnet, dass die Druckfeder (11, 12, 13) in Belastungsrichtung einen mehrschichtigen Aufbau (11a, 11b) aufweist.Upper roller carrying and loading arm (1) according to claim 9, characterized in that the compression spring (11, 12, 13) in the loading direction has a multilayer construction (11a, 11b). Oberwalzen-Trag- und Belastungsarm (1) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Druckfedern (11, 12, 13) jeweils unterschiedliche Farben aufweisen.Upper roller carrying and loading arm (1) according to one of claims 1 to 10, characterized in that the compression springs (11, 12, 13) each have different colors.
EP08017471A 2007-11-10 2008-10-06 Top roller carrying and loading arm Withdrawn EP2058421A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007053712A DE102007053712A1 (en) 2007-11-10 2007-11-10 Top roller carrying and loading arm

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102007053712 Previously-Filed-Application 2007-11-10

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EP2058421A2 true EP2058421A2 (en) 2009-05-13
EP2058421A3 EP2058421A3 (en) 2011-05-11

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EP (1) EP2058421A3 (en)
JP (1) JP2009121016A (en)
CN (1) CN101429691B (en)
DE (1) DE102007053712A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3020854A1 (en) * 2014-11-13 2016-05-18 Murata Machinery, Ltd. Drafting device and spinning unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6085095B2 (en) * 2011-03-31 2017-02-22 住友化学株式会社 Optical element

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DE102007053712A1 (en) 2009-05-14
EP2058421A3 (en) 2011-05-11
JP2009121016A (en) 2009-06-04
CN101429691B (en) 2012-04-25
CN101429691A (en) 2009-05-13

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