EP1941085B1 - Drawing system for a textile machine - Google Patents

Drawing system for a textile machine Download PDF

Info

Publication number
EP1941085B1
EP1941085B1 EP06791619.7A EP06791619A EP1941085B1 EP 1941085 B1 EP1941085 B1 EP 1941085B1 EP 06791619 A EP06791619 A EP 06791619A EP 1941085 B1 EP1941085 B1 EP 1941085B1
Authority
EP
European Patent Office
Prior art keywords
support
screw
drafting system
carrier
adjustment element
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
EP06791619.7A
Other languages
German (de)
French (fr)
Other versions
EP1941085A1 (en
Inventor
Jürgen SCHELGEL
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
Saurer Germany GmbH and Co KG
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 Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP1941085A1 publication Critical patent/EP1941085A1/en
Application granted granted Critical
Publication of EP1941085B1 publication Critical patent/EP1941085B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

Definitions

  • the present invention relates to a drafting system for a textile machine according to the preamble of claim 1.
  • a drafting system for spinning machines which has a support for receiving top rollers and a support, wherein the carrier is pivotally mounted on the support about a bearing axis received by the support and can be fixed by means of the support on a support rod of a textile machine.
  • the support comprises a stationary, fixed to the support rod part and a relative to the support rod pivotable support member.
  • the stationary part of the support is fixed by means of a fastening screw on the support rod by the fastening screw engages in a bore on the support rod.
  • a set screw is rotatably mounted on the stationary part of the support, which is fixedly connected to the pivotable support part of the support.
  • the support member is pivotable in accordance with the setting of the adjusting screw relative to the stationary part of the support.
  • the adjusting screw is rotated in the appropriate direction.
  • GB769800A discloses a drafting system according to the preamble of claim 1, wherein an adjusting screw is provided, by means of which the carrier relative to the support rod is adjustable, and which is arranged on the side of the machine frame under the carrier.
  • a disadvantage proves that the adjusting and mounting screws are relatively difficult to access in the mounted position to make a readjustment of the drafting can.
  • the adjusting element is arranged on the top of the support, that it is accessible during operation of the drafting of the top of the support.
  • This allows the operator to adjust the drafting system in the closed position of the carrier during operation of the drafting system by a user-friendly accessibility on the side facing away from the machine interior of the drafting system.
  • the required Compared to the prior art reduced to compensate for the basic setting of the support due to manufacturing tolerances caused the positional deviations that would lead to a positional change in contact pressure and are absolutely necessary for the proper use of the drafting system.
  • a readjustment of the drafting system in operation can be carried out in a simple manner, if required, for example, due to reground rolls. An operator therefore does not have to work between the drafting system and the machine frame, as is the case in accordance with the prior art.
  • the adjusting element can determine the angular position of the carrier on its bearing axis via a lever arrangement.
  • a change in the angular position of the carrier relative to the support rod is effected with unchanged spatial position of the bearing axis.
  • This ensures that the position of the roller pairs to each other during and after completion of the height adjustment remains unchanged.
  • the lever assembly may be formed as a dead center, which is operable with an operating lever.
  • the lever arrangement may have a tab which carries an abutment of the dead center mechanism on which the adjusting element engages, which determines the angular position of the tab about the bearing axis.
  • the adjusting element is for this purpose connected by a lever with the abutment of the tab.
  • the actuation of the adjustment leads based on the common Bearing axis of the carrier and tab to a change in the angular position of the tab.
  • the actuation is transmitted by the lever arrangement with the same effect on the carrier, which changes its angular position to the same extent as the tab.
  • the adjusting element can be designed as a screw.
  • a screw as an adjustment for height adjustment can be dependent on the thread pitch of the screw a finely tuned height adjustment of the support relative to the support due to any manufacturing tolerances after the basic adjustment of the drafting system or in a change in position caused by reground rollers.
  • a receptacle for the arrangement of the screw head of the adjusting element may be provided on the upper side of the support, wherein the receptacle has a shape corresponding to the outer contour of the male screw head.
  • the receptacle has a shape corresponding to the outer contour of the male screw head.
  • a compression spring can be arranged on the screw shank.
  • the preferably conical shape of the compression spring allows a self-centering installation in the support without additional, the position of the compression spring fixing components.
  • the compression spring is supported in the recording at the Inner wall of the top of the support and on a arranged in the interior of the support lever assembly, which is in operative connection with the carrier and the operating lever from.
  • the falling down of the in-open position carrier or the operating lever can be prevented.
  • a screw with a planar head may be provided as the adjusting element, wherein a self-locking snap nut is arranged on the screw for securing.
  • a self-locking snap nut is arranged on the screw for securing.
  • the adjustment can be dispensed with a previously described receptacle for securing the screw against rotation, since the backup against accidental rotation of the screw is achieved by the self-locking nut.
  • Fig. 1 represents a height-adjustable support 2 of a drafting arrangement, which is arranged pivotably about a bearing axis 3 on a support
  • the support 1 is fixed in place on two mutually parallel support rods 6 on the machine frame of a textile machine.
  • the support 1 on its side facing away from the carrier 2 of the contour of the support rods 6 corresponding recesses 7, so that the support 1, the support rods 6 partially encloses a form-fitting manner.
  • the carrier 2 takes in a conventional manner not shown upper rollers in loading elements 8, which serve with not shown corresponding lower rollers of the drafting system the drawing of a sliver.
  • an operating lever 4 is arranged on the loading elements 8 side facing away from the carrier 2, on the loading elements 8 side facing away from the carrier 2, an operating lever 4 is arranged.
  • the carrier 2 is moved from a closed position, in which the carrier 2 and the operating lever 4 are arranged substantially parallel to each other, into an open position transferred, in which the carrier 2 and the operating lever 4 are arranged at an angle to each other and vice versa.
  • the upper rollers are pressed against the lower rollers, while in the open position, the upper rollers and lower rollers are spaced from each other.
  • the adjustment of the height-adjustable support 2 is effected by an adjusting element, which is arranged above the bearing axis 3 at the top of the support 1.
  • the arrangement of the adjusting element is such that it is accessible during operation of the drafting of the top of the support 1.
  • the adjusting element is designed as a screw 5.
  • the screw 5 is arranged over a in the support 1 Lever assembly 16 with the carrier 2 and the operating lever 4 in operative connection. To adjust the carrier 2, the angular position of the carrier 2 via the lever assembly 16 by turning the screw 5 is changed so that a height adjustment of the carrier 2 is achieved.
  • the representation in Fig. 2 is a first embodiment of the trained as a screw 5 adjustment can be seen.
  • the screw 5 in this case has a conical screw head 12 which is held in a arranged on the top of the support 1 conical receptacle 9, which extends from the top of the support 1, starting in the interior of the support 1.
  • the receptacle 9 is designed such that its dimensions correspond to those of the screw head 12, so that between the screw head 12 and the receptacle 9 is a frictional connection.
  • a positive connection is achieved, resulting in a large contact surface between the screw head 12 and the receptacle 9, whereby the frictional engagement is improved. Due to the frictional engagement, a securing of the screw 5 against undesired rotation during operation of the drafting system, for example due to vibrations, is achieved.
  • a conical compression spring 10 is arranged, which is supported in the interior of the support 1 at the top and on the lever assembly 16.
  • the compression spring 10 causes in the open position of the carrier 2 that the carrier 2 is held in its open position.
  • the shape of the compression spring 10 causes a self-centering installation of the compression spring 10 on the inner wall of the support 1 in the region of the receptacle.
  • Fig. 3 showed a second embodiment of the running as a screw 5 adjustment.
  • the screw 5 a spherical segment-shaped screw head 13 which is also held in a form corresponding to the shape of the screw head 13 receptacle substantially frictionally, whereby a backup of the screw 5 is achieved against rotation.
  • the adjusting causes the positive connection between the screw head 13 and the receptacle 9 an improvement of the frictional engagement due to large contact surfaces.
  • a conical compression spring 10 is also arranged on the shaft of the screw 5.
  • a third embodiment of the adjustment is shown, which is a screw 11 with a planar screw head, which rests on the top of the support 1.
  • a self-locking snap nut 14 is used to secure the screw 11 against accidental rotation.
  • a specially shaped receptacle for securing, as described in the preceding embodiments of the adjustment is not provided.
  • the screw 11 is in the same manner with the lever assembly 16 in the interior of the support 1 in operative connection, such as the screw 5 with a conical or spherical screw head.
  • a compression spring 15 enclosing the screw shank of the screw 11 is arranged, which likewise serves to prevent the fall of the support 2 located in the open position.
  • Fig. 5 the executed as a dead center lever assembly 16 is shown in more detail, which serves to lock the operating lever 4 in the closed position of the carrier 2 and the height adjustment.
  • the lever assembly 16 has a lever 19 which is articulated at its one end via an abutment 18 on a tab 17 and with its other end is so connected to the adjustment that the lever 19 is adjustable by the operation of the adjustment in the vertical direction.
  • the tab 17 is arranged as the carrier 2 pivotally mounted on the bearing axis 3.
  • a first lever arm 20 is articulated, which is connected via a guided in a slot of the lever arm 20 hinge pin 22 with a second lever arm 21.
  • the second lever arm 21 is connected to the operating lever 4.
  • the height adjustment during operation leads to a change in the angular position of the carrier 2 relative to the support rod 6 with unchanged spatial position of the bearing axis 3.
  • the change of the angular position is effected by the adjustment by the angle position of the.
  • In the closed position of the carrier 2 via the lever 19 Tab 17 of the lever assembly 16 is determined.
  • This change is transmitted by the lever assembly 16 also on the carrier 2 and leads to a change in the angular position of the carrier 2, wherein the position of the bearing axis 3 remains spatially unchanged.
  • the easy accessibility for the actuation of the adjusting element during operation of the drafting system is due to the inventive arrangement of the adjusting element on the support 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Looms (AREA)

Description

Die vorliegende Erfindung betrifft ein Streckwerk für eine Textilmaschine gemäß dem Oberbegriff des Anspruches 1.The present invention relates to a drafting system for a textile machine according to the preamble of claim 1.

Aus der DE 1 133 289 ist ein Streckwerk für Spinnereimaschinen bekannt, welches einen Träger zur Aufnahme von Oberwalzen und eine Stütze aufweist, wobei der Träger an der Stütze um eine von der Stütze aufgenommene Lagerachse schwenkbar angeordnet ist und mittels der Stütze an einer Haltestange einer Textilmaschine fixierbar ist. Die Stütze umfasst einen ortsfesten, an der Haltestange fixierten Teil und einen gegenüber der Haltestange schwenkbaren Stützenteil. Der ortsfeste Teil der Stütze ist mittels einer Befestigungsschraube an der Haltestange fixiert, indem die Befestigungsschraube in eine Bohrung an der Haltestange eingreift. Des Weiteren ist eine Stellschraube an dem ortfesten Teil der Stütze drehbar angeordnet, die mit dem schwenkbaren Stützenteil der Stütze fest verbunden ist. Der Stützenteil ist nach Maßgabe der Einstellung der Stellschraube gegenüber dem ortsfesten Teil der Stütze verschwenkbar. Zur Einstellung der gewünschten Lage des Trägers und zur Nachjustierung auf Grund von Fertigungstoleranzen nach einer durchgeführten Grundeinstellung des Streckwerkes bei dessen Montage wird die Stellschraube in die entsprechende Richtung gedreht. GB769800A offenbart ein Streckwerk gemäß dem Oberbegriff des Anspruchs 1, wobei eine Einstellschraube vorhanden ist, mittels dessen der Träger gegenüber der Haltestange verstellbar ist, und der an der Seite des Maschinengestells unter dem Träger angeordnet ist. Als nachteilig erweist sich, dass die Stell- und Befestigungsschrauben in montierter Position relativ schwer zugänglich sind, um eine Nachjustierung des Streckwerkes vornehmen zu können. Da diese auf der dem Träger abgewandten Seite der Stütze angeordnet sind, sie sich somit auf der dem Maschinengestell zugewandten Seite befinden, ist zur Nachjustierung die Demontage eines Abdeckstreifens am ortsfesten Teil der Stütze erforderlich, da dieser die Stell- und Befestigungsschrauben abdeckt. Daher ist der Aufwand bei einer notwendig werdenden Nachjustierung zum Ausgleich von Fertigungstoleranzen nach der Grundeinstellung nicht unerheblich. Darüber hinaus können durch die Befestigungsschraube Deformationen an der Haltestange auftreten. Des Weiteren kann bei einer Nachjustierung des Streckwerkes die räumliche Position der Lagerachse mitsamt dem schwenkbaren Stützenteil verändert werden, was dazu führt, dass es zu einer Verschiebung der einander gegenüberliegenden Ober- und Unterwalzen in horizontaler Richtung kommt. Diese Verschiebung lässt die Neujustierung der Walzenpaare zueinander nach erfolgter Höheneinstellung zwingend erforderlich werden, um den Betrieb wieder aufnehmen zu können.From the DE 1 133 289 a drafting system for spinning machines is known, which has a support for receiving top rollers and a support, wherein the carrier is pivotally mounted on the support about a bearing axis received by the support and can be fixed by means of the support on a support rod of a textile machine. The support comprises a stationary, fixed to the support rod part and a relative to the support rod pivotable support member. The stationary part of the support is fixed by means of a fastening screw on the support rod by the fastening screw engages in a bore on the support rod. Further, a set screw is rotatably mounted on the stationary part of the support, which is fixedly connected to the pivotable support part of the support. The support member is pivotable in accordance with the setting of the adjusting screw relative to the stationary part of the support. To set the desired position of the carrier and for readjustment due to manufacturing tolerances after a basic adjustment of the drafting system during its assembly, the adjusting screw is rotated in the appropriate direction. GB769800A discloses a drafting system according to the preamble of claim 1, wherein an adjusting screw is provided, by means of which the carrier relative to the support rod is adjustable, and which is arranged on the side of the machine frame under the carrier. A disadvantage proves that the adjusting and mounting screws are relatively difficult to access in the mounted position to make a readjustment of the drafting can. Since these are arranged on the side facing away from the support of the support, they are thus on the machine frame side facing, is for Readjustment requires the disassembly of a cover strip on the stationary part of the support, as this covers the adjusting and fixing screws. Therefore, the effort in a necessary readjustment to compensate for manufacturing tolerances after the basic setting is not negligible. In addition, deformations can occur on the retaining rod due to the fastening screw. Furthermore, in a readjustment of the drafting system, the spatial position of the bearing axis can be changed together with the pivotable support part, which leads to a shift of the opposing upper and lower rollers in the horizontal direction. This shift makes it necessary to readjust the roller pairs to each other after adjusting the height in order to resume operation.

Somit ist es Aufgabe der vorliegenden Erfindung, ein Streckwerk bereitzustellen, das eine vereinfachte Handhabung der Höhenverstellbarkeit ermöglicht.Thus, it is an object of the present invention to provide a drafting system, which allows a simplified handling of the height adjustment.

Dies wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 erreicht.This is inventively achieved by the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Gemäß Anspruch 1 wird vorgeschlagen, dass das Einstellelement so an der Oberseite der Stütze angeordnet ist, dass es während des Betriebes des Streckwerkes von der Oberseite der Stütze zugänglich ist. Dies ermöglicht dem Bedienpersonal die Einstellung des Streckwerkes in geschlossener Position des Trägers während des Betriebes des Streckwerkes durch eine bedienerfreundliche Zugänglichkeit auf der dem Maschineninneren abgewandten Seite des Streckwerkes. Somit wird der erforderliche Aufwand gegenüber dem Stand der Technik reduziert, um nach der Grundeinstellung der Stütze auf Grund fertigungstechnisch bedingter Toleranzen die auftretenden Lageabweichungen auszugleichen, die zu einer lagebedingten Veränderung des Anpressdruckes führen würden und für den ordnungsgemäßen Einsatz des Streckwerkes unbedingt zu vermeiden sind. Darüber hinaus lässt sich in einfacher Weise eine Nachjustierung des in Betrieb befindlichen Streckwerkes durchführen, wenn dies beispielsweise auf Grund nachgeschliffener Walzen erforderlich würde. Eine Bedienperson muss somit nicht zwischen dem Streckwerk und dem Maschinengestell hantieren, wie es gemäß dem Stand der Technik der Fall ist.According to claim 1 it is proposed that the adjusting element is arranged on the top of the support, that it is accessible during operation of the drafting of the top of the support. This allows the operator to adjust the drafting system in the closed position of the carrier during operation of the drafting system by a user-friendly accessibility on the side facing away from the machine interior of the drafting system. Thus, the required Compared to the prior art reduced to compensate for the basic setting of the support due to manufacturing tolerances caused the positional deviations that would lead to a positional change in contact pressure and are absolutely necessary for the proper use of the drafting system. In addition, a readjustment of the drafting system in operation can be carried out in a simple manner, if required, for example, due to reground rolls. An operator therefore does not have to work between the drafting system and the machine frame, as is the case in accordance with the prior art.

Vorteilhafterweise kann das Einstellelement über eine Hebelanordnung die Winkellage des Trägers auf dessen Lagerachse bestimmen. Hierdurch wird eine Änderung der Winkellage des Trägers gegenüber der Haltestange bei unveränderter räumlicher Position der Lagerachse bewirkt. Dadurch wird erreicht, dass die Position der Walzenpaare zueinander während und nach Abschluss der Höhenverstellung unverändert bleibt. Dies hat den Vorteil, dass die gemäß dem Stand der Technik zwingend erforderliche Nachjustierung der Walzenpaare entfällt und dass die Höheneinstellung des Streckwerkes auch während des Betriebes möglich ist.Advantageously, the adjusting element can determine the angular position of the carrier on its bearing axis via a lever arrangement. As a result, a change in the angular position of the carrier relative to the support rod is effected with unchanged spatial position of the bearing axis. This ensures that the position of the roller pairs to each other during and after completion of the height adjustment remains unchanged. This has the advantage that the mandatory according to the prior art readjustment of the roller pairs is eliminated and that the height adjustment of the drafting system is also possible during operation.

Vorzugsweise kann die Hebelanordnung als eine Totpunktmechanik ausgebildet sein, die mit einem Bedienhebel betätigbar ist.Preferably, the lever assembly may be formed as a dead center, which is operable with an operating lever.

Dabei kann die Hebelanordnung eine Lasche aufweisen, die ein Widerlager der Totpunktmechanik trägt, an dem das Einstellelement angreift, das die Winkellage der Lasche um die Lagerachse bestimmt. Das Einstellelement ist hierzu durch einen Hebel mit dem Widerlager der Lasche verbunden. Die Betätigung des Einstellelementes führt bezogen auf die gemeinsame Lagerachse von Träger und Lasche zu einer Veränderung der Winkellage der Lasche. Die Betätigung wird durch die Hebelanordnung gleichwirkend auf den Träger übertragen, der in gleichem Maße wie die Lasche seine Winkellage verändert.In this case, the lever arrangement may have a tab which carries an abutment of the dead center mechanism on which the adjusting element engages, which determines the angular position of the tab about the bearing axis. The adjusting element is for this purpose connected by a lever with the abutment of the tab. The actuation of the adjustment leads based on the common Bearing axis of the carrier and tab to a change in the angular position of the tab. The actuation is transmitted by the lever arrangement with the same effect on the carrier, which changes its angular position to the same extent as the tab.

Vorzugsweise kann das Einstellelement als eine Schraube ausgeführt sein. Durch die Verwendung einer Schraube als Einstellelement zur Höhenverstellung lässt sich abhängig von der Gewindesteigung der Schraube eine fein abgestimmte Höhenverstellung des Trägers relativ zur Stütze auf Grund etwaiger fertigungstechnischer Toleranzen nach erfolgter Grundeinstellung des Streckwerkes oder bei einer auftretenden Lageveränderung bedingt durch nachgeschliffene Walzen erreichen.Preferably, the adjusting element can be designed as a screw. By using a screw as an adjustment for height adjustment can be dependent on the thread pitch of the screw a finely tuned height adjustment of the support relative to the support due to any manufacturing tolerances after the basic adjustment of the drafting system or in a change in position caused by reground rollers.

Hierbei kann an der Oberseite der Stütze eine Aufnahme zur Anordnung des Schraubenkopfes des Einstellelementes vorgesehen sein, wobei die Aufnahme eine der äußeren Kontur des aufzunehmenden Schraubenkopfes entsprechende Form aufweist. Auf diese Weise wird eine Sicherung gegen ungewolltes Verdrehen der Schraube, beispielsweise durch während des Betriebes der Textilmaschine auf die Stütze übertragene Vibrationen, auf Grund des zwischen dem Schraubenkopf und der Aufnahme auftretenden Reibschlusses erreicht. Der Reibschluss wird zudem durch die formschlüssige Anordnung des Schraubenkopfes in der Aufnahme verbessert, da große Anlageflächen zwischen dem Schraubenkopf und der Aufnahme bestehen. Darüber hinaus kann die Aufnahme derart ausgebildet sein, dass der Schraubenkopf zumindest teilweise in der Stütze versenkbar ist.Here, a receptacle for the arrangement of the screw head of the adjusting element may be provided on the upper side of the support, wherein the receptacle has a shape corresponding to the outer contour of the male screw head. In this way, a backup against accidental rotation of the screw, for example, achieved by during operation of the textile machine transmitted to the support vibrations, due to the friction occurring between the screw head and the recording achieved. The frictional engagement is also improved by the positive-locking arrangement of the screw head in the receptacle, since there are large contact surfaces between the screw head and the receptacle. In addition, the receptacle may be designed such that the screw head is at least partially retractable in the support.

Vorteilhafterweise kann am Schraubenschaft eine Druckfeder angeordnet sein. Die vorzugsweise konische Form der Druckfeder ermöglicht einen selbstzentrierenden Einbau in der Stütze ohne zusätzliche, die Position der Druckfeder fixierende Bauteile. Dazu stützt sich die Druckfeder im Bereich der Aufnahme an der Innenwand der Oberseite der Stütze und an einer im Inneren der Stütze angeordneten Hebelanordnung, die mit dem Träger und dem Bedienhebel in Wirkverbindung steht, ab. Somit kann das Herunterfallen des in geöffneter Position befindlichen Trägers beziehungsweise des Bedienhebels verhindert werden.Advantageously, a compression spring can be arranged on the screw shank. The preferably conical shape of the compression spring allows a self-centering installation in the support without additional, the position of the compression spring fixing components. For this purpose, the compression spring is supported in the recording at the Inner wall of the top of the support and on a arranged in the interior of the support lever assembly, which is in operative connection with the carrier and the operating lever from. Thus, the falling down of the in-open position carrier or the operating lever can be prevented.

Alternativ kann als Einstellelement eine Schraube mit einem planaren Kopf vorgesehen sein, wobei zur Sicherung eine selbstsichernde Schnappmutter an der Schraube angeordnet ist. Bei dieser Ausführungsform des Einstellelementes kann auf eine zuvor beschriebene Aufnahme zur Sicherung der Schraube gegen Verdrehen verzichtet werden, da die Sicherung gegen ein ungewolltes Verdrehen der Schraube durch die selbstsichernde Mutter erreicht wird. Bei der Verwendung der Schraube mit einem planaren Schraubenkopf liegt dieser auf der Oberseite der Stütze auf.Alternatively, a screw with a planar head may be provided as the adjusting element, wherein a self-locking snap nut is arranged on the screw for securing. In this embodiment of the adjustment can be dispensed with a previously described receptacle for securing the screw against rotation, since the backup against accidental rotation of the screw is achieved by the self-locking nut. When using the screw with a planar screw head it rests on top of the support.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawings.

Darin zeigen:

Fig. 1
eine Stütze und einen Träger eines Streckwerkes;
Fig. 2
eine Detailansicht eines Einstellelementes gemäß Fig. 1;
Fig. 3
eine Detailansicht einer zweiten Ausführungsform eines Einstellelementes gemäß Fig. 1;
Fig. 4
eine Detailansicht einer dritten Ausführungsform eines Einstellelementes gemäß Fig. 1;
Fig. 5
eine Teilschnittansicht des Trägers in Betriebsposition des Streckwerkes.
Show:
Fig. 1
a support and a carrier of a drafting system;
Fig. 2
a detailed view of a setting according to Fig. 1 ;
Fig. 3
a detailed view of a second embodiment of a setting according to Fig. 1 ;
Fig. 4
a detailed view of a third embodiment of a setting according to Fig. 1 ;
Fig. 5
a partial sectional view of the carrier in the operating position of the drafting system.

Fig. 1 stellt einen höhenverstellbaren Träger 2 eines Streckwerkes dar, der um eine Lagerachse 3 an einer Stütze 1 schwenkbar angeordnet ist. Die Stütze 1 ist an zwei parallel zueinander angeordneten Haltestangen 6 am Maschinengestell einer Textilmaschine ortsfest fixierbar. Hierzu weist die Stütze 1 an ihrer dem Träger 2 abgewandten Seite der Kontur der Haltestangen 6 entsprechende Ausnehmungen 7 auf, sodass die Stütze 1 die Haltestangen 6 abschnittsweise formschlüssig umschließt. Fig. 1 represents a height-adjustable support 2 of a drafting arrangement, which is arranged pivotably about a bearing axis 3 on a support The support 1 is fixed in place on two mutually parallel support rods 6 on the machine frame of a textile machine. For this purpose, the support 1 on its side facing away from the carrier 2 of the contour of the support rods 6 corresponding recesses 7, so that the support 1, the support rods 6 partially encloses a form-fitting manner.

Der Träger 2 nimmt in üblicher Weise nicht dargestellte Oberwalzen in Belastungselementen 8 auf, die mit nicht dargestellten korrespondierenden Unterwalzen des Streckwerkes dem Verstrecken eines Faserbandes dienen. Auf der den Belastungselementen 8 abgewandten Seite des Trägers 2 ist ein Bedienhebel 4 angeordnet. Der Bedienhebel 4 dient der Ent- und Verriegelung beim Öffnen beziehungsweise Schließen des Trägers 2. Mittels des Bedienhebels 4 wird der Träger 2 aus einer geschlossenen Position, in der der Träger 2 und der Bedienhebel 4 im Wesentlichen parallel zueinander angeordnet sind, in eine offene Position überführt, in der der Träger 2 und der Bedienhebel 4 unter einem Winkel zueinander angeordnet sind und umgekehrt. In der geschlossenen Position des Trägers 2 werden die Oberwalzen gegen die Unterwalzen gepresst, während in der offenen Position die Oberwalzen und Unterwalzen zueinander beabstandet sind.The carrier 2 takes in a conventional manner not shown upper rollers in loading elements 8, which serve with not shown corresponding lower rollers of the drafting system the drawing of a sliver. On the loading elements 8 side facing away from the carrier 2, an operating lever 4 is arranged. By means of the operating lever 4, the carrier 2 is moved from a closed position, in which the carrier 2 and the operating lever 4 are arranged substantially parallel to each other, into an open position transferred, in which the carrier 2 and the operating lever 4 are arranged at an angle to each other and vice versa. In the closed position of the carrier 2, the upper rollers are pressed against the lower rollers, while in the open position, the upper rollers and lower rollers are spaced from each other.

Die Justierung des höhenverstellbaren Trägers 2 erfolgt durch ein Einstellelement, welches oberhalb der Lagerachse 3 an der Oberseite der Stütze 1 angeordnet ist. Die Anordnung des Einstellelementes ist derart, dass es während des Betriebes des Streckwerkes von der Oberseite der Stütze 1 zugänglich ist. Das Einstellelement ist als eine Schraube 5 ausgeführt. Die Schraube 5 steht über eine in der Stütze 1 angeordnete Hebelanordnung 16 mit dem Träger 2 und dem Bedienhebel 4 in Wirkverbindung. Zur Einstellung des Trägers 2 wird die Winkellage des Trägers 2 über die Hebelanordnung 16 durch Verdrehen der Schraube 5 derart verändert, dass eine Höhenverstellung des Trägers 2 erreicht wird.The adjustment of the height-adjustable support 2 is effected by an adjusting element, which is arranged above the bearing axis 3 at the top of the support 1. The arrangement of the adjusting element is such that it is accessible during operation of the drafting of the top of the support 1. The adjusting element is designed as a screw 5. The screw 5 is arranged over a in the support 1 Lever assembly 16 with the carrier 2 and the operating lever 4 in operative connection. To adjust the carrier 2, the angular position of the carrier 2 via the lever assembly 16 by turning the screw 5 is changed so that a height adjustment of the carrier 2 is achieved.

Der Darstellung in Fig. 2 ist eine erste Ausführungsform des als Schraube 5 ausgebildeten Einstellelementes zu entnehmen. Die Schraube 5 weist dabei einen konischen Schraubenkopf 12 auf, der in einer auf der Oberseite der Stütze 1 angeordneten konischen Aufnahme 9 gehalten wird, die sich von der Oberseite des Träges 1 ausgehend ins Innere der Stütze 1 erstreckt. Die Aufnahme 9 ist derart ausgeführt, dass ihre Abmessungen mit denen des Schraubenkopfes 12 korrespondieren, sodass zwischen dem Schraubenkopf 12 und der Aufnahme 9 eine reibschlüssige Verbindung besteht. Durch die an den Schraubenkopf 12 angepasste Form der Aufnahme 9 wird ein Formschluss erreicht, was zu einer großen Anlagefläche zwischen dem Schraubenkopf 12 und der Aufnahme 9 führt, wodurch der Reibschluss verbessert wird. Durch den Reibschluss wird eine Sicherung der Schraube 5 gegen ein ungewolltes Verdrehen während des Betriebes des Streckwerkes, beispielsweise auf Grund von Vibrationen, erreicht.The representation in Fig. 2 is a first embodiment of the trained as a screw 5 adjustment can be seen. The screw 5 in this case has a conical screw head 12 which is held in a arranged on the top of the support 1 conical receptacle 9, which extends from the top of the support 1, starting in the interior of the support 1. The receptacle 9 is designed such that its dimensions correspond to those of the screw head 12, so that between the screw head 12 and the receptacle 9 is a frictional connection. By adapted to the screw head 12 shape of the receptacle 9 a positive connection is achieved, resulting in a large contact surface between the screw head 12 and the receptacle 9, whereby the frictional engagement is improved. Due to the frictional engagement, a securing of the screw 5 against undesired rotation during operation of the drafting system, for example due to vibrations, is achieved.

Am Schaft der Schraube 5 ist eine konische Druckfeder 10 angeordnet, die sich im Inneren der Stütze 1 an deren Oberseite und an der Hebelanordnung 16 abstützt. Die Druckfeder 10 bewirkt in geöffneter Position des Trägers 2, dass der Träger 2 in seiner geöffneten Position gehalten wird. Zudem bewirkt die Form der Druckfeder 10 einen sich selbstzentrierenden Einbau der Druckfeder 10 an der Innenwand der Stütze 1 im Bereich der Aufnahme 9.On the shaft of the screw 5, a conical compression spring 10 is arranged, which is supported in the interior of the support 1 at the top and on the lever assembly 16. The compression spring 10 causes in the open position of the carrier 2 that the carrier 2 is held in its open position. In addition, the shape of the compression spring 10 causes a self-centering installation of the compression spring 10 on the inner wall of the support 1 in the region of the receptacle. 9

Fig. 3 zeigte eine zweite Ausführungsform des als Schraube 5 ausgeführten Einstellelementes. In dieser Ausführungsform weist die Schraube 5 einen kugelsegmentförmigen Schraubenkopf 13 auf, der ebenfalls in einer der Form des Schraubenkopfes 13 entsprechenden Aufnahme 9 im Wesentlichen reibschlüssig gehalten wird, wodurch eine Sicherung der Schraube 5 gegen Verdrehen erreicht wird. Auch bei dieser Ausführungsform des Einstellelementes bewirkt der Formschluss zwischen dem Schraubenkopf 13 und der Aufnahme 9 eine Verbesserung des Reibschlusses auf Grund großer Anlageflächen. Zum Halten des Trägers 2 in seiner geöffneten Position ist am Schaft der Schraube 5 ebenfalls eine konische Druckfeder 10 angeordnet. Fig. 3 showed a second embodiment of the running as a screw 5 adjustment. In this embodiment the screw 5 a spherical segment-shaped screw head 13 which is also held in a form corresponding to the shape of the screw head 13 receptacle substantially frictionally, whereby a backup of the screw 5 is achieved against rotation. In this embodiment of the adjusting causes the positive connection between the screw head 13 and the receptacle 9 an improvement of the frictional engagement due to large contact surfaces. For holding the carrier 2 in its open position, a conical compression spring 10 is also arranged on the shaft of the screw 5.

In Fig. 4 ist eine dritte Ausführungsform des Einstellelementes dargestellt, bei dem es sich um eine Schraube 11 mit einem planaren Schraubenkopf handelt, der an der Oberseite der Stütze 1 aufliegt. Zur Sicherung der Schraube 11 gegen ein unbeabsichtigtes Verdrehen, wird eine selbstsichernde Schnappmutter 14 verwendet. Eine speziell geformte Aufnahme zur Sicherung, wie bei den vorangehenden Ausführungsbeispielen des Einstellelementes beschrieben, ist nicht vorgesehen. Die Schraube 11 steht in gleicher Weise mit der Hebelanordnung 16 im Inneren der Stütze 1 in Wirkverbindung, wie die Schraube 5 mit konischem oder kugelförmigem Schraubenkopf. Des Weiteren ist zwischen der selbstsichernden Schnappmutter 14 und der Innenwand der Stütze 1 eine den Schraubenschaft der Schraube 11 umschließende Druckfeder 15 angeordnet, die gleichfalls dazu dient, das Herunterfallen des sich in geöffneter Position befindlichen Trägers 2 zu verhindern.In Fig. 4 a third embodiment of the adjustment is shown, which is a screw 11 with a planar screw head, which rests on the top of the support 1. To secure the screw 11 against accidental rotation, a self-locking snap nut 14 is used. A specially shaped receptacle for securing, as described in the preceding embodiments of the adjustment is not provided. The screw 11 is in the same manner with the lever assembly 16 in the interior of the support 1 in operative connection, such as the screw 5 with a conical or spherical screw head. Furthermore, between the self-locking snap nut 14 and the inner wall of the support 1, a compression spring 15 enclosing the screw shank of the screw 11 is arranged, which likewise serves to prevent the fall of the support 2 located in the open position.

In Fig. 5 ist die als Totpunktmechanik ausgeführte Hebelanordnung 16 näher dargestellt, die der Arretierung des Bedienhebels 4 in geschlossener Position des Trägers 2 und der Höhenverstellung dient. Die Hebelanordnung 16 weist einen Hebel 19 auf, der mit seinem einen Ende über ein Widerlager 18 an einer Lasche 17 angelenkt ist und mit seinem anderen Ende derart mit dem Einstellelement verbunden ist, dass der Hebel 19 durch die Betätigung des Einstellelementes in vertikaler Richtung verstellbar ist. Die Lasche 17 ist wie der Träger 2 schwenkbar an der Lagerachse 3 angeordnet. An das Widerlager 18 ist ein erster Hebelarm 20 angelenkt, der über einen in einem Langloch des Hebelarmes 20 geführten Gelenkbolzen 22 mit einem zweiten Hebelarm 21 verbunden ist. Der zweite Hebelarm 21 ist mit dem Bedienhebel 4 verbunden.In Fig. 5 the executed as a dead center lever assembly 16 is shown in more detail, which serves to lock the operating lever 4 in the closed position of the carrier 2 and the height adjustment. The lever assembly 16 has a lever 19 which is articulated at its one end via an abutment 18 on a tab 17 and with its other end is so connected to the adjustment that the lever 19 is adjustable by the operation of the adjustment in the vertical direction. The tab 17 is arranged as the carrier 2 pivotally mounted on the bearing axis 3. To the abutment 18, a first lever arm 20 is articulated, which is connected via a guided in a slot of the lever arm 20 hinge pin 22 with a second lever arm 21. The second lever arm 21 is connected to the operating lever 4.

Die Höhenverstellung während des Betriebes führt zu einer Änderung der Winkellage des Trägers 2 gegenüber der Haltestange 6 bei unveränderter räumlicher Position der Lagerachse 3. Die Änderung der Winkellage wird durch das Einstellelement bewirkt, indem bei geschlossener Position des Trägers 2 über den Hebel 19 die Winkellage der Lasche 17 der Hebelanordnung 16 bestimmt wird. Diese Änderung wird durch die Hebelanordnung 16 auch auf den Träger 2 übertragen und führt zu einer Veränderung der Winkellage des Trägers 2, wobei die Position der Lagerachse 3 räumlich unverändert bleibt. Die einfache Zugänglichkeit zur Betätigung des Einstellelementes während des Betriebes des Streckwerkes ist dabei auf die erfindungsgemäße Anordnung des Einstellelementes an der Stütze 1 zurückzuführen.The height adjustment during operation leads to a change in the angular position of the carrier 2 relative to the support rod 6 with unchanged spatial position of the bearing axis 3. The change of the angular position is effected by the adjustment by the angle position of the. In the closed position of the carrier 2 via the lever 19 Tab 17 of the lever assembly 16 is determined. This change is transmitted by the lever assembly 16 also on the carrier 2 and leads to a change in the angular position of the carrier 2, wherein the position of the bearing axis 3 remains spatially unchanged. The easy accessibility for the actuation of the adjusting element during operation of the drafting system is due to the inventive arrangement of the adjusting element on the support 1.

Claims (8)

  1. Drafting system for a textile machine with a support (2) designed to receive top rollers, which is arranged so that it can pivot around a bearing axis (3) attached to a pillar (1), in which the pillar (1) is fixed to a retaining rod (6) of the textile machine and that an adjustment element (5, 11) is present which with the support (2) opposite the retaining rod (6) can be adjusted, characterised in that the adjustment element (5, 11) is arranged on the top side of the support (1) so that it is accessible from the top side of the support (1) during operation of the drafting system.
  2. Drafting system according to claim 1, characterised in that the adjustment element (5, 11) determines the angular position of the support (2) on its bearing axis (3) via a lever assembly (16).
  3. Drafting system according to claim 1 or 2, characterised in that the lever assembly (16) is designed as a dead-centre mechanism, which can be actuated with an operating lever (4).
  4. Drafting system according to claim 2 or 3, characterised in that the lever assembly (16) has a tab that has a thrust bearing (18) of the dead-centre mechanism onto which the adjustment element (5, 11) engages and determines the angular position of the tab (17) around the bearing axis (3).
  5. Drafting system according to one of the claims 1 to 4, characterised in that the adjustment element is designed as a screw (5, 11).
  6. Drafting system according to claim 5, characterised in that a mount (9) to arrange the screw head of the screw (5, 11) is provided on the top side of the support (1), and the mount (9) has the corresponding shape of one of the outer contours of the screw head to be picked up.
  7. Drafting system according to one of the claims 5 or 6, characterised in that a pressure spring (10) is arranged on the shaft of the screw.
  8. Drafting system according to one of the claims 5 or 6, characterised in that the screw (11) is designed with a planar head, whereby a self-locking speed nut (14) is arranged to secure the screw (11).
EP06791619.7A 2005-10-21 2006-08-23 Drawing system for a textile machine Active EP1941085B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005050537.6A DE102005050537B4 (en) 2005-10-21 2005-10-21 Drafting system for a textile machine
PCT/EP2006/008251 WO2007045297A1 (en) 2005-10-21 2006-08-23 Drawing system for a textile machine

Publications (2)

Publication Number Publication Date
EP1941085A1 EP1941085A1 (en) 2008-07-09
EP1941085B1 true EP1941085B1 (en) 2018-08-01

Family

ID=37497075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791619.7A Active EP1941085B1 (en) 2005-10-21 2006-08-23 Drawing system for a textile machine

Country Status (5)

Country Link
EP (1) EP1941085B1 (en)
JP (1) JP4922305B2 (en)
CN (1) CN101287867B (en)
DE (1) DE102005050537B4 (en)
WO (1) WO2007045297A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056210A1 (en) * 2008-11-06 2010-05-12 Oerlikon Textile Components Gmbh Upper roller carrying and loading arm for a drafting system
CN102586972A (en) * 2012-02-23 2012-07-18 河北农业大学 Device for calibrating operating pressure of spinning cradle

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817206A (en) * 1957-11-29 1959-07-29 Ernst Toenniessen Draft mechanism for spinning machines
GB769800A (en) * 1954-11-02 1957-03-13 Fairbairn Lawson Combe Barbour Improvements in textile drafting machines
DE1133289B (en) * 1961-04-21 1962-07-12 Skf Kugellagerfabriken Gmbh Top roller support and loading arm for spinning machine drafting systems
DE1282525B (en) * 1963-12-16 1968-11-07 Spinnerei Karl Marx Veb Locking device for a swiveling top roller support and loading arm of spinning machine drafting systems
DE2019352C3 (en) * 1970-04-22 1974-12-19 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Upper roll support and loading device
JPS5030429Y2 (en) * 1972-04-22 1975-09-06
JPS4927629A (en) * 1972-06-16 1974-03-12
JPS5227943Y2 (en) * 1973-08-08 1977-06-25
JPS5952285B2 (en) * 1975-11-18 1984-12-19 エヌ テ− エヌトウヨウベアリング カブシキガイシヤ Bracket set for transportation
AU499696B2 (en) * 1975-10-29 1979-04-26 Ntn Toyo Bearing Co. Ltd. Bracket tightening device
JPS5254859A (en) * 1975-10-29 1977-05-04 Ntn Toyo Bearing Co Ltd Adjustable bracket fastening device using elastic body
JPS5932691B2 (en) * 1975-11-18 1984-08-10 エヌ テ− エヌトウヨウベアリング カブシキガイシヤ Bracket set for transportation
JPS5254860A (en) * 1975-10-29 1977-05-04 Ntn Toyo Bearing Co Ltd Adjustable bracket fastening device using elastic body
DE19507540C1 (en) * 1995-03-03 1996-08-22 Skf Textilmasch Komponenten Arm to give support and pressure to upper drawing rollers
CN2335980Y (en) * 1997-12-26 1999-09-01 山西经纬合力机械制造公司四厂 Rigid double location large-angle turning up mechanism for top arm
CN2447341Y (en) * 2000-11-08 2001-09-12 宁波民丰实业有限公司 Plastic roving top tenser
CN2496888Y (en) * 2001-06-05 2002-06-26 罗循江 Frame drafting cradle regulating and fixing apparatus
CN2633904Y (en) * 2003-08-11 2004-08-18 铜陵市松宝机械有限公司 Closely wonen spinning negative pressure tube top roller drafting pressure regulator

Also Published As

Publication number Publication date
JP2009511767A (en) 2009-03-19
JP4922305B2 (en) 2012-04-25
CN101287867B (en) 2010-07-28
DE102005050537B4 (en) 2021-08-12
CN101287867A (en) 2008-10-15
DE102005050537A1 (en) 2007-05-03
EP1941085A1 (en) 2008-07-09
WO2007045297A1 (en) 2007-04-26

Similar Documents

Publication Publication Date Title
EP2003013A2 (en) Locking device for a rail adjustment system
EP2040948B1 (en) Connector device on a retainer device for a cover of an openable vehicle roof
EP0802048B1 (en) Rotary encoder for a cylinder of a printing machine
DE102005042190A1 (en) Hinge arrangement for use in e.g. automobile tail cover, has adjustment device with sliding unit that is adjusted by guiding surfaces such that guiding surfaces run perpendicular to each other
EP1941085B1 (en) Drawing system for a textile machine
DE102008056430B3 (en) Hood hinge for motor vehicle for linking arrangement of vehicle hood, particularly luggage compartment door or front hood in vehicle, has base carrier attached to body part and hood support connected with vehicle hood
WO2008064841A1 (en) Steering column for a motor vehicle
DE10250905B4 (en) Adjustment device for a steering wheel of a truck
DE102017119483A1 (en) Bicycle tax rate with steering angle adjustment
EP0186742B1 (en) Tilting device for a boxed roller blind
DE102009011438A1 (en) Sliding system for machine tools
DE4216781C2 (en) Device for receiving rotary body pins
EP1612359A2 (en) Window regulator
DE3508521A1 (en) DRILLING AND ASSEMBLY MACHINE
DE10305032B3 (en) Ticket stamping device has spacing between stamping cylinder and counter-pressure cylinder adjusted during operation by rotation of eccentric shaft section supporting counter-pressure cylinder
EP0747557B1 (en) Door hinge
EP2189558A1 (en) Upper cylinder carrying and load arm for a stretching unit
DE3619586C2 (en)
EP3278693B1 (en) Fitting for a sliding door
WO1999046465A1 (en) Screw-hook hinge adjustable in height
DE3709018A1 (en) Apparatus for bending sheet plates
EP0969173A2 (en) Furniture hinge
EP2083101A2 (en) Device for fixing a support of a drafting unit
EP0729566A1 (en) Microtome
DE102010007823A1 (en) Axially adjusted steering column arrangement for motor vehicle, has guide tube, casing pipe mounted on guide tube and slide bush arranged in annular gap between casing pipe and guide tube

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080521

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH IT LI

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): CH IT LI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OERLIKON TEXTILE COMPONENTS GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAURER COMPONENTS GMBH

17Q First examination report despatched

Effective date: 20161202

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAURER GERMANY GMBH & CO. KG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

INTG Intention to grant announced

Effective date: 20180529

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SAURER SPINNING SOLUTIONS GMBH & CO. KG

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230829

Year of fee payment: 18

Ref country code: CH

Payment date: 20230902

Year of fee payment: 18