EP1848847B1 - Top cylinder carrier for drafting systems in spinning machines. - Google Patents
Top cylinder carrier for drafting systems in spinning machines. Download PDFInfo
- Publication number
- EP1848847B1 EP1848847B1 EP05807852A EP05807852A EP1848847B1 EP 1848847 B1 EP1848847 B1 EP 1848847B1 EP 05807852 A EP05807852 A EP 05807852A EP 05807852 A EP05807852 A EP 05807852A EP 1848847 B1 EP1848847 B1 EP 1848847B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- apron
- holding device
- roller carrier
- carrier according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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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
- D01H5/44—Adjusting drafting elements, e.g. altering ratch
-
- 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
- D01H5/70—Constructional features of drafting elements
- D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
Definitions
- the invention relates to a top roll carrier for drafting systems on spinning machines according to the preamble of claim 1.
- Oberwalzenani are commonly used as a support and loading arm for upper roller pairs and with respect to the machine-mounted lower rollers withdrawn.
- an elastic hollow body which is pneumatically or alternatively hydraulically pressurized.
- the pressure acts on tappets via a bottom plate of the hollow body and acts on both the input and output rollers as well as the apron roller and the upper apron holder with a force which presses against the lower rollers and causes the upper rollers to act as pressure rollers.
- German utility model G 92 14 598 U1 describes a top apron holder for spinning machine drafting systems with a Riemchen interview, which deflects the Oberriemchen and biases under the pressure of a spring.
- the strap guide is held on a center piece of the upper strap holder.
- the CH 656 647 A5 shows a Riemchenstreckwerk that is used on a spinning machine and having three each consisting of upper and lower rollers roller pairs.
- the top rollers are supported in the top roller carrier, which is arranged pivotable about a pivot pin to the machine stand.
- the box-shaped top roll carrier includes a guide assembly for the top roll center pins. To this engage in their length mid-range spring-loaded hold-down with which for all pairs of rollers about the same Spaltantigkraft to be achieved.
- the Oberwalzentragzapfen are guided in guide slots of Oberwalzenmois.
- the ever-occurring game between top rollers and leading edges precludes a precise adjustment of the terminal point and leads to wear problems.
- the distance between the upper rollers with each other in the longitudinal direction of the Oberwalzenmois is not changeable for this reason. An adjustment of the field widths, as it is necessary when adapting to the respective fiber material to be processed, is not possible.
- the holding device according to the invention which is movably connected to the upper roll carrier, unites the axle holders for the delivery roller and the apron roller in one component.
- the position of the axle receptacles in the holding device and thus the position of the axes of the output roller and the apron roller to each other can be produced with high manufacturing accuracy. In this way, an extremely accurate positioning of the clamping points of Riemchenwalze and exit roller to achieve and maintain.
- the parallelism of the delivery roller and apron roller is always guaranteed.
- usual safety distances can be waived. Such usual safety distances are taken into account, for example, when setting the desired field width, because the achievable accuracy in the field width adjustment can only be insufficient.
- the holding device according to the invention reduces the number of components for the holding device compared to conventional holding devices. To be able to act on the holding device with a force in the direction of the lower rollers, only a single common device, for example a spring device, is necessary. The application of force to the delivery roller and apron roller can be done separately from other top rollers such as the input roller. The cost incurred in a change in the significant field width adjustment between Riemchenwalze and input roller effort is low. The required effort inica.und assembly is reduced because fewer and simpler parts are needed.
- the holding device comprises a top apron deflecting device, wherein the top apron deflecting device is designed as a wing, which terminates at the free end with a deflecting edge.
- This further reduces the number of components on the top roll carrier.
- the orientation of the top apron deflector to the apron roller is very precise and can not be adversely affected by the effect of assembly tolerances or the summation of manufacturing tolerances of multiple components.
- the deflection can not be due to poor setting or heavy deformable fiber materials are deflected from the parallel alignment. Such a deflection would disadvantageously lead to number fluctuations or even to axially running straps.
- the opening size remains the same.
- the deflecting edge is designed as a chromed metal rail and the metal rail is attached to the wing, only little friction occurs during the deflection process, and the deflecting edge is subjected to only minimal wear. Due to the low-friction deflection edge, the loop slip is minimized.
- Maintenance intervals can be extended.
- the apron roller only needs to be removed rarely or not at all.
- the holding device is assigned a Riemchenspanner, which is aligned axially parallel to the upper rollers and movable relative to the holding device.
- This design allows easy flexible tensioning of the top aprons. An excellent Riemchenretemaschinen is guaranteed.
- the required contact force can be easily applied. If the head part is designed as a separate component which can be displaced longitudinally relative to the holding device, the distribution of the compressive force on the apron roller and the output roller can be changed.
- Both a head part which is designed as a pressure plate, over which an elastic hollow body is arranged, and wherein with Help the hollow body which is sufficient to generate the load pressure force pneumatically or hydraulically generated, as well as a head over the Oberwalzenisme a spring is arranged, by means of which the head part is acted upon with the force, allow a metered pressurization of the output roller and the Riemchenwalze with a compressive force.
- the wear can be reduced, the service life increased and the maintenance intervals can be extended.
- a common adjustable force application of the output roller and Riemchenwalze separately from other top rollers as the input roller is possible.
- a holding device made of plastic can be produced particularly inexpensively, has little weight, is resistant to corrosion and meets the elasticity requirements imposed on the holding device.
- Polyoxymethylene referred to as POM, is characterized by high hardness, stiffness and toughness and is particularly well suited for this application. If the plastic is electrically conductive, an uncomplicated dissipation of electrostatic charges is ensured. This avoids interference caused by electrostatic charge during spinning operation.
- Fig. 1 a part of a Oberwalzentungs 1 is shown, which carries a holding device 2.
- the holding device 2 has axle mounts 3, 4 for the axes 5, 6 of the Riemchenwalzencrues and the output roller pair on.
- axle mounts 3, 4 are part of the one-piece holding device 2.
- the holding device 2 consists of the elastic plastic POM. Due to the elasticity, the axles 5, 6 can be easily pressed into the axle receptacles 3, 4 during assembly. The axes 5, 6 are held securely in the snap connection.
- the associated lower rollers 9, 10 are positioned so that their axes of rotation 11, 12 are offset from the axes of rotation 13, 14 of the output roller 8 and the Riemchenwalze 7.
- the axis of rotation 11 of the lower roller 9 is in the representation of Fig. 1 not perpendicular under the axis of rotation 13 of the output roller 8, but slightly offset to the right.
- the axis of rotation 12 of the lower roller 10 is offset somewhat to the left towards the axis of rotation 14 of the apron roller 7. If the Riemchenwalze 7 and the output roller 8 is pressurized and pressed against the lower rollers 9, 10, horizontal force components occur.
- the horizontal force component acting on the output roller 8 is shown in FIG Fig. 1 directed to the left and is called curtain power.
- the pressurization of the Riemchenwalze 7 and the output roller 8 is pneumatic.
- the holding device 2 designed as a pressure plate 15 head portion is arranged, on which the bottom plate 16 of an elastic hollow body 17 rests.
- the pressure plate 15 is displaceable relative to the holding device 2 in the longitudinal direction of the Oberwalzenitatis 1. If the pressure plate 15 in the representation of Fig. 1 shifted to the left, the pressure on the output roller 8 increases, and the pressure on the Riemchenwalze 7 is lower.
- the pressure on the output roller 8 decreases, and the pressure on the apron roller 7 becomes larger. In this way, the pressure distribution on the Riemchenwalze 7 and the output roller 8 can be made variable.
- the holding device 2 has a slot 18, the edges 19, 20 each extend on the radius R TR , which is struck around the pivot point of the Oberwalzenitatis 1.
- a hollow bolt 21 is guided, which is connected by means of screws 22 fixed to the Oberwalzenitati 1. Due to the interaction of elongated hole 18 and hollow pin 21, the holding device 2, regardless of the altitude, which occupies the Oberwalzenmoi 1, be positioned.
- the Metallic hollow pin 21 stiffens the U-shaped, downwardly open body of the Oberwalzenitatis first
- the holding device 2 has a designed as a wing 23 Oberriemchen deflection device over which the Oberriemchen 24 is guided.
- the free end of the blade 23 has a distance R from the axis of rotation 14 of the apron roller 7.
- the distance R is, for example, in an embodiment for the processing of short staple fiber material 35 mm.
- the free end forms the deflection edge 25 for the two Oberriemchen 24, 26 of the Riemchenwalzenploes.
- the width of the blade 23 is tuned to the largest required spindle pitch. In the effective direction of the force by which the top aprons 24, 26 are tensioned, the wing 23 is very stiff.
- the deflecting edge 25 can be moved at the free end of the wing 23 without much effort.
- the opening dimension X can be easily adjusted for the required jaw widths.
- the shape of the wing 23 is in the Figures 2 and 3 recognizable.
- the position of the Oberriemchens 26 is in Fig. 2 indicated by dashed lines.
- the wing 23 carries a nose 27, on which a piston 28 applies a bearing force.
- the bearing force is given to the piston 28 of the bottom plate 16.
- the piston 18 is movably guided in a bore 29 of the holding device 2.
- Fig. 4 shows an alternative embodiment to that in the Figures 1-3
- the wing 30 has a receptacle 31 for a chromed interchangeable metal rail 32.
- the receptacle 31 is designed such that the metal rail 32 is alternatively positionable in two different positions.
- Fig. 4 shows a first position of the metal rail 32, in which the distance R 1 of the axis of rotation 14 of the Riemchenwalze 7 results.
- Fig. 4A shows a second position of the metal rail 32, in which the distance R 2 results.
- the distance R 2 is smaller than the distance R 1 .
- the position of the deflection edge 25 can be adapted to the respective production conditions by suitable selection of the metal rail 32 and / or by the choice of the position of the metal rail 32 in such a way that an optimal spinning geometry is ensured.
- the position of the deflecting edge 25 can be selected so that a sufficient distance between the output roller 8 and upper apron 24 is ensured. A quality-affecting strip of Oberriemchens 24 on the output roller 8 is reliably avoided.
- the chromed metal rail 32 is particularly resistant to wear and causes a low-friction deflection of Oberriemchen 24, 26. The slip and slippage of Oberriemchen 24, 26 is reduced.
- the holding device 2 has between the wing 23 and the axle 3 a vertically oriented and downwardly open slot 33.
- the slot 33 serves as a guide slot for the support shaft 34 of a Riemchenspanners 35.
- On the support shaft 34 is on both sides depending on a guide element 36, 37 attached as in Fig. 2 shown.
- the guide members 36, 37 hold the top aprons 24, 26 in the desired position and prevent their axial displacement.
- the gap 38 between the wing 23 and underside of the holding device 2 is slightly smaller than the diameter of the support shaft 34.
- a spring element 39 presses from below against the carrier axis 34.
- the top aprons 24, 26 are tensioned by means of the carrier axis 34 with a selectable force.
- the position of the tensioned upper apron 26 is in the illustration of Fig. 2 indicated by dashed lines.
- the Oberriemchen 24 assumes a corresponding mirror image position on the left side of the holding device 2, but is in the Fig. 2 not shown.
- the holding device 2 has on each side of a nub 66, with which the holding device 2 is held in the top roll carrier 1.
- Fig. 5 shows a top roll carrier 40 with a holding device 41 which is acted upon by a spring force in order to generate the required for the spinning process pressure of the apron roller 42 and the output roller 43 to the lower rollers 44, 45.
- the axle receptacle 49 supports the axis 51 of the output roller 43.
- the curtain force of the output roller 43 and the rearward force of the apron roller 42 are similar in the exemplary embodiment of FIG Fig. 5 essentially, so that only a small or no horizontal force component acts on the holding device 41, as it does in the case of FIG Fig.
- the holding device 2 is the case.
- the Pressure plate 52 is made of steel.
- the pressure plate 52 is suitable both for holding devices for the processing of short staple fiber material and for holding devices which are to be used for the processing of medium or long staple fiber material.
- the holding devices are easy and quick to replace.
- the pressure plate 52 and attached to it holding device 41 is pivotally connected to a pressure tab 54.
- the pressure flap 54 is pivotable about a pivot axis 55 fixedly connected to the top roll carrier 40.
- the compression spring 56 is supported on the one hand on a transverse pin 57 of the pressure plate 54 and on the other hand on a support plate 58 from.
- the support plate 58 abuts against an eccentric element 59.
- the eccentric element 59 is rotatably mounted on a rotation axis 60.
- the rotation axis 60 is fixedly connected to the top roll carrier 40.
- the force is adjustable with which the compression spring 56 acts on the pressure flap 54 and thus on the holding device 41, the apron roller 42 and the output roller 43.
- the pressure flap 54 is designed so that the holding device 40 is acted upon by a largely constant force, even if the height position of the Oberwalzenanis 40 is adjusted within a certain range. This area can be about 6 mm.
- a compression spring 61 urges the wing 65 with a certain downward force.
- the vane 65 serves to deflect the top apron 62 of the apron roller 42 and the other upper apron and the associated other apron roller, both in the Fig. 5 not shown, and with the top apron 62 and the apron roller 42 each form a pair.
- Oberriemchens 62 and arranged in mirror image Oberriemchens serves a Riemchenspanner 63, as in the Fig. 1 . 2 or 4 is shown.
- the strap tensioner 63 is moved up and down in the slot 64 and is pressed by an unillustrated spring element upwards.
- the holding devices each designed for the processing of conventionalstapeligem, astapeligem or langstapeligem fiber material can be easily and simply replaced.
- the Riemchentician can be easily rotatable, whereby the loop slip can be further reduced.
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Abstract
Description
Die Erfindung betrifft einen Oberwalzenträger für Streckwerke an Spinnmaschinen nach dem Oberbegriff des Anspruchs 1.The invention relates to a top roll carrier for drafting systems on spinning machines according to the preamble of
Oberwalzenträger sind üblicherweise als Trag- und Belastungsarm für Oberwalzenpaare eingesetzt und gegenüber den maschinenfest gelagerten Unterwalzen abhebbar.Oberwalzenträger are commonly used as a support and loading arm for upper roller pairs and with respect to the machine-mounted lower rollers withdrawn.
Bei Streckwerken ist es bekannt, eine aus textiltechnologischen Gründen erforderliche Anpassung an das Fasermaterial beziehungsweise die Stapellänge des Fasermaterials vorzunehmen und dazu den Abstand zwischen den von den Walzenpaaren des Streckwerkes gebildeten Klemmlinien zu verändern. Dieser Abstand wird auch Feldweite genannt. Es ist dazu bekannt, den Oberwalzenträger zur Feldweiteneinstellung so auszubilden, dass die Abstände zwischen den Oberwalzen einstellbar sind. Die
Das deutsche Gebrauchsmuster
Aus der gattungsbildenden
Die Halterungen der bekannten Oberwalzenträger, wie sie in den vorgenannten Druckschriften beschrieben sind, weisen den gemeinsamen Nachteil auf, dass sie eine große Anzahl von Einzelteilen benötigen sowie zeitraubende und fehleranfällige Feldweiteneinstellungen für Riemchen- und Ausgangswalze erfordern.The brackets of the known Oberwalzenträger, as described in the aforementioned publications, have the common drawback that they require a large number of items and require time-consuming and error-prone field width settings for Riemchen- and exit roller.
Die
Sowohl die
Der
Beim Streckwerk der
Es ist Aufgabe der Erfindung, die bekannten Oberwalzenträger zu verbessern.It is an object of the invention to improve the known Oberwalzenträger.
Die Aufgabe wird erfindungsgemäß mittels eines Oberwalzenträgers mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by means of a Oberwalzenträgers with the features of
Vorteilhafte Ausgestaltungen des Oberwalzenträgers sind Gegenstand der Unteransprüche.Advantageous embodiments of the Oberwalzenträgers are the subject of the dependent claims.
Die erfindungsgemäße, beweglich mit dem Oberwalzenträger verbundene Halteeinrichtung vereinigt die Achsaufnahmen für die Ausgangswalze und die Riemchenwalze in einem Bauteil. Die Position der Achsaufnahmen in der Halteeinrichtung und damit die Lage der Achsen der Ausgangswalze und der Riemchenwalze zueinander lässt sich mit hoher Fertigungsgenauigkeit herstellen. Auf diese Weise ist eine außerordentlich exakte Positionierung der Klemmpunkte von Riemchenwalze und Ausgangswalze zu erreichen und beibehalten. Die Parallelität von Ausgangswalze und Riemchenwalze ist stets gewährleistet. Auf den Zuschlag üblicher Sicherheitsabstände kann verzichtet werden. Solche üblichen Sicherheitsabstände werden beispielsweise bei der Einstellung der gewünschten Feldweite berücksichtigt, weil die erreichbare Genauigkeit bei der Feldweiteneinstellung nur unzureichend sein kann. Fertigungs- und Montageungenauigkeiten, die sich bei mehrteiligen Halterungen summieren können, lassen eine Schrägstellung der Oberwalzen zu, die die Einstellung der Feldweiten nachteilig beeinflusst. Dem sollen Zuschläge in Form von Sicherheitsabständen entgegenwirken. Die erfindungsgemäße Halteeinrichtung reduziert die Anzahl der Bauteile für die Halteeinrichtung gegenüber üblichen Halteeinrichtungen. Um die Halteeinrichtung mit einer Kraft in Richtung der Unterwalzen beaufschlagen zu können, ist nur eine einzige gemeinsame Vorrichtung, zum Beispiel eine Federvorrichtung, notwendig. Die Kraftbeaufschlagung von Ausgangswalze und Riemchenwalze kann separat von anderen Oberwalzen wie der Eingangswalze erfolgen. Der bei einer Änderung der signifikanten Feldweiteneinstellung zwischen Riemchenwalze und Eingangswalze auftretende Aufwand ist gering. Der erforderliche Aufwand in Herstellung.und Montage wird gesenkt, da weniger und nur einfachere Teile benötigt werden.The holding device according to the invention, which is movably connected to the upper roll carrier, unites the axle holders for the delivery roller and the apron roller in one component. The position of the axle receptacles in the holding device and thus the position of the axes of the output roller and the apron roller to each other can be produced with high manufacturing accuracy. In this way, an extremely accurate positioning of the clamping points of Riemchenwalze and exit roller to achieve and maintain. The parallelism of the delivery roller and apron roller is always guaranteed. On the addition of usual safety distances can be waived. Such usual safety distances are taken into account, for example, when setting the desired field width, because the achievable accuracy in the field width adjustment can only be insufficient. Manufacturing and assembly inaccuracies, which can add up in multi-part mounts, allow an inclination of the top rollers, which adversely affects the setting of the field widths. This should counteract surcharges in the form of safety distances. The holding device according to the invention reduces the number of components for the holding device compared to conventional holding devices. To be able to act on the holding device with a force in the direction of the lower rollers, only a single common device, for example a spring device, is necessary. The application of force to the delivery roller and apron roller can be done separately from other top rollers such as the input roller. The cost incurred in a change in the significant field width adjustment between Riemchenwalze and input roller effort is low. The required effort in Fertigung.und assembly is reduced because fewer and simpler parts are needed.
Erfindungsgemäβ umfasst die Halteeinrichtung eine Oberriemchen-Umlenkeinrichtung, wobei die Oberriemchen-Umlenkeinrichtung als Flügel ausgebildet ist, der am freien Ende mit einer Umlenkkante abschließt. Dadurch wird die Anzahl der Bauteile am Oberwalzenträger weiter verringert. Die Ausrichtung der Oberriemchen-Umlenkeinrichtung zur Riemchenwalze ist sehr präzise und kann sich nicht durch die Auswirkung von Montagetoleranzen oder die Summierung von Fertigungstoleranzen mehrerer Bauelemente nachteilig verändern. Die Umlenkkante kann nicht durch mangelhafte Einstellung oder schwer verziehbare Fasermaterialien aus der parallelen Ausrichtung ausgelenkt werden. Eine solche Auslenkung würde nachteilig zu Nummernschwankungen oder sogar zu axial ablaufenden Riemchen führen. Das Öffnungsmaß bleibt gleich.According to the invention, the holding device comprises a top apron deflecting device, wherein the top apron deflecting device is designed as a wing, which terminates at the free end with a deflecting edge. This further reduces the number of components on the top roll carrier. The orientation of the top apron deflector to the apron roller is very precise and can not be adversely affected by the effect of assembly tolerances or the summation of manufacturing tolerances of multiple components. The deflection can not be due to poor setting or heavy deformable fiber materials are deflected from the parallel alignment. Such a deflection would disadvantageously lead to number fluctuations or even to axially running straps. The opening size remains the same.
Ist die Umlenkkante als verchromte Metallschiene ausgebildet und ist die Metallschiene am Flügel befestigt, tritt beim Umlenkungsvorgang nur wenig Reibung auf, und die Umlenkkante ist nur geringem Verschleiß unterworfen. Durch die reibungsarme Umlenkkante wird der Riemchenschlupf minimiert.If the deflecting edge is designed as a chromed metal rail and the metal rail is attached to the wing, only little friction occurs during the deflection process, and the deflecting edge is subjected to only minimal wear. Due to the low-friction deflection edge, the loop slip is minimized.
Wartungsintervalle können verlängert werden. Die Riemchenwalze muss nur noch selten oder gar nicht mehr ausgebaut werden.Maintenance intervals can be extended. The apron roller only needs to be removed rarely or not at all.
Bevorzugt ist der Halteeinrichtung ein Riemchenspanner zugeordnet, der achsparallel zu den Oberwalzen ausgerichtet und relativ zur Halteeinrichtung bewegbar ist. Diese Ausführung ermöglicht ein einfaches flexibles Spannen der Oberriemchen. Ein ausgezeichneter Riemchengleichlauf ist gewährleistet.Preferably, the holding device is assigned a Riemchenspanner, which is aligned axially parallel to the upper rollers and movable relative to the holding device. This design allows easy flexible tensioning of the top aprons. An excellent Riemchengleichlauf is guaranteed.
Mit einer Halteeinrichtung, die ein Kopfteil aufweist, und bei der mittels des Kopfteils durch eine von oben angreifende Kraft auf die als Oberwalze ausgebildeten Riemchenwalzen und Ausgangswalzen ein Belastungsdruck ausübbar ist, lässt sich die benötigte Auflagekraft einfach aufbringen. Ist das Kopfteil als separates, relativ zur Halteeinrichtung längs verschiebbares Bauteil ausgebildet, kann die Aufteilung der Druckkraft auf die Riemchenwalze und die Ausgangswalze verändert werden.With a holding device which has a head part, and in which by means of the head part by a force acting from above on the upper roller formed as a Riemchenwalzen and output rollers, a load pressure can be exercised, the required contact force can be easily applied. If the head part is designed as a separate component which can be displaced longitudinally relative to the holding device, the distribution of the compressive force on the apron roller and the output roller can be changed.
Sowohl ein Kopfteil, das als Druckplatte ausgebildet ist, über der ein elastischer Hohlkörper angeordnet ist, und wobei mit Hilfe des Hohlkörpers die für die Generierung des Belastungsdrucks ausreichende Kraft pneumatisch oder hydraulisch generierbar ist, als auch ein Kopfteil, über dem im Oberwalzenträger eine Feder angeordnet ist, mittels der das Kopfteil mit der Kraft beaufschlagbar ist, ermöglichen ein dosiertes Beaufschlagen der Ausgangswalze und der Riemchenwalze mit einer Druckkraft. Bei gleichmäßiger Druckverteilung durch die nicht unterbrochene Druckplatte kann der Verschleiß gesenkt, die Standzeit erhöht und die Wartungsintervalle können verlängert werden. Für das Aufbringen des Belastungsdrucks auf Ausgangswalze und Riemchenwalze ist für beide Walzen nur eine einzige Einrichtung erforderlich. Eine gemeinsame einstellbare Kraftbeaufschlagung von Ausgangswalze und Riemchenwalze separat von anderen Oberwalzen wie der Eingangswalze ist möglich.Both a head part, which is designed as a pressure plate, over which an elastic hollow body is arranged, and wherein with Help the hollow body which is sufficient to generate the load pressure force pneumatically or hydraulically generated, as well as a head over the Oberwalzenträger a spring is arranged, by means of which the head part is acted upon with the force, allow a metered pressurization of the output roller and the Riemchenwalze with a compressive force. With even pressure distribution through the uninterrupted pressure plate, the wear can be reduced, the service life increased and the maintenance intervals can be extended. For the application of the load pressure on the output roller and Riemchenwalze only a single device is required for both rolls. A common adjustable force application of the output roller and Riemchenwalze separately from other top rollers as the input roller is possible.
Eine aus Kunststoff bestehende Halteeinrichtung lässt sich besonders kostengünstig herstellen, hat nur wenig Gewicht, ist widerstandsfähig gegen Korrosion und erfüllt die an die Halteeinrichtung gestellten Elastizitätsanforderungen. Polyoxymethylen, als POM bezeichnet, zeichnet sich durch hohe Härte, Steifigkeit und Zähigkeit aus und ist besonders gut für diesen Anwendungsfall geeignet. Ist der Kunststoff elektrisch leitfähig, ist eine unkomplizierte Ableitung elektrostatischer Ladungen gewährleistet. Damit werden durch elektrostatische Aufladung verursachte Störungen beim Spinnbetrieb vermieden.A holding device made of plastic can be produced particularly inexpensively, has little weight, is resistant to corrosion and meets the elasticity requirements imposed on the holding device. Polyoxymethylene, referred to as POM, is characterized by high hardness, stiffness and toughness and is particularly well suited for this application. If the plastic is electrically conductive, an uncomplicated dissipation of electrostatic charges is ensured. This avoids interference caused by electrostatic charge during spinning operation.
Zeitraubende und fehleranfällige Feldweiteneinstellungsareiten für Riemchen- und Ausgangswalze entfallen. Es ist nur eine einfache Einstellung für die Eingangswalze erforderlich.Time-consuming and error-prone field width adjustment methods for apron and outfeed rollers are eliminated. Only one simple setting is required for the input roller.
Weitere Einzelheiten der Erfindung sind nachfolgend anhand der Figuren erläutert.Further details of the invention are explained below with reference to FIGS.
Es zeigen:
- Fig. 1
- die vereinfachte Teildarstellung eines Oberwalzenträgers mit einer Halteeinrichtung in Seitenansicht, teilweise im Schnitt,
- Fig. 2
- die Halteeinrichtung der
Fig. 1 in der Ansicht A-A, teilweise im Schnitt, - Fig. 3
- eine Draufsicht auf die Oberriemchen-Umlenkeinrichtung der Halteeinrichtung der
Fig. 1 in der Ansicht I-I, teilweise im Schnitt, - Fig. 4
- eine Umlenkkante der Oberriemchen-Umlenkeinrichtung mit Metallschiene, in Seitenansicht,
- Fig. 4A
- eine Umlenkkante der Oberriemchen-Umlenkeinrichtung mit der Metallschiene in einer alternativen Stellung, in Seitenansicht,
- Fig. 5
- die vereinfachte Teildarstellung eines Oberwalzenträgers mit einer federbelasteten Halteeinrichtung in Seitenansicht, teilweise im Schnitt,
- Fig. 1
- the simplified partial view of a Oberwalzenträgers with a holding device in side view, partly in section,
- Fig. 2
- the holding device of
Fig. 1 in the view AA, partly in section, - Fig. 3
- a plan view of the Oberriemchen-deflecting the holding device of
Fig. 1 in view II, partly in section, - Fig. 4
- a deflection edge of Oberriemchen deflection device with metal rail, in side view,
- Fig. 4A
- a deflection edge of Oberriemchen deflection device with the metal rail in an alternative position, in side view,
- Fig. 5
- the simplified partial view of a Oberwalzenträgers with a spring-loaded holding device in side view, partly in section,
In
Die Lage des Riemchenwalzenpaares und des Ausgangswalzenpaares ist jeweils durch eine Riemchenwalze 7 und eine Ausgangswalze 8 angezeigt. Beide Achsaufnahmen 3, 4 sind Teil der einstückigen Halteeinrichtung 2. Die Halteeinrichtung 2 besteht aus dem elastischen Kunststoff POM. Aufgrund der Elastizität lassen sich die Achsen 5, 6 bei der Montage auf einfache Weise in die Achsaufnahmen 3, 4 drücken. Die Achsen 5, 6 werden in der Schnappverbindung sicher gehalten. Riemchenwalzenpaar und Ausgangswalzenpaar bilden zusammen mit dem in
Die Druckbeaufschlagung der Riemchenwalze 7 und der Ausgangswalze 8 erfolgt pneumatisch. Auf der Halteeinrichtung 2 ist ein als Druckplatte 15 ausgebildetes Kopfteil angeordnet, auf dem die Bodenplatte 16 eines elastischen Hohlkörpers 17 aufliegt. Durch Beaufschlagung des Hohlkörpers 17 mit Druckluft wird die Halteeinrichtung 2 nach unten gedrückt, der Druck auf die Riemchenwalze 7 und die Ausgangswalze 8 übertragen und die Riemchenwalze 7 und die Ausgangswalze 8 auf die Unterwalzen 9, 10 gepresst. Die Druckplatte 15 ist gegenüber der Halteeinrichtung 2 in Längsrichtung des Oberwalzenträgers 1 verschiebbar. Wird die Druckplatte 15 in der Darstellung der
Die Halteeinrichtung 2 weist ein Langloch 18 auf, dessen Ränder 19, 20 jeweils auf dem Radius RTR verlaufen, der um den Drehpunkt des Oberwalzenträgers 1 geschlagen ist. In dem Langloch 18 ist ein Hohlbolzen 21 geführt, der mittels Schrauben 22 fest mit dem Oberwalzenträger 1 verbunden ist. Durch das Zusammenwirken von Langloch 18 und Hohlbolzen 21 kann die Halteeinrichtung 2, unabhängig von der Höhenlage, die der Oberwalzenträger 1 einnimmt, positioniert sein. Der metallische Hohlbolzen 21 versteift den U-förmigen, nach unten offenen Körper des Oberwalzenträgers 1.The holding
Zu den Achsaufnahmen 3, 4 weist die Halteeinrichtung 2 eine als Flügel 23 ausgebildete Oberriemchen-Umlenkeinrichtung auf, über die das Oberriemchen 24 geführt ist. Das freie Ende des Flügels 23 hat einen Abstand R von der Rotationsachse 14 der Riemchenwalze 7. Der Abstand R beträgt beispielsweise bei einer Ausführung für die Verarbeitung von kurzstapeligem Fasermaterial 35 mm. Das freie Ende bildet die Umlenkkante 25 für die beiden Oberriemchen 24, 26 des Riemchenwalzenpaares. Die Breite des Flügels 23 ist auf die größte benötigte Spindelteilung abgestimmt. In Wirkrichtung der Kraft, durch die die Oberriemchen 24, 26 gespannt werden, ist der Flügel 23 sehr steif ausgebildet. In vertikaler Richtung kann die Umlenkkante 25 am freien Ende des Flügels 23 ohne großen Kraftaufwand bewegt werden. Damit kann sich das Öffnungsmaß X für die jeweils erforderlichen Maulweiten leicht einstellen. Die Form des Flügels 23 ist in den
Die Halteeinrichtung 2 weist zwischen dem Flügel 23 und der Achsaufnahme 3 einen vertikal ausgerichteten und nach unten geöffneten Schlitz 33 auf. Der Schlitz 33 dient als Führungskulisse für die Trägerachse 34 eines Riemchenspanners 35. An der Trägerachse 34 ist beidseitig je ein Führungselement 36, 37 befestigt wie in
Ein Federelement 39 drückt von unten gegen die Trägerachse 34. Die Oberriemchen 24, 26 werden mittels der Trägerachse 34 mit einer wählbaren Kraft gespannt. Die Lage des gespannten Oberriemchens 26 ist in der Darstellung der
Die Halteeinrichtung 2 weist auf jeder Seite eine Noppe 66 auf, mit denen die Halteeinrichtung 2 im Oberwalzenträger 1 festgehalten wird.The holding
Mittels des Hebels 67 wird die in
Die Halteeinrichtungen jeweils für die Verarbeitung von kurzstapeligem, mittelstapeligem oder langstapeligem Fasermaterial ausgebildet, lassen sich leicht und einfach austauschen.The holding devices each designed for the processing of kurzstapeligem, mittelstapeligem or langstapeligem fiber material can be easily and simply replaced.
Die Riemchenführer können leichtgängig drehbar ausgebildet werden, wodurch der Riemchenschlupf weiter vermindert werden kann.The Riemchenführer can be easily rotatable, whereby the loop slip can be further reduced.
Im Rahmen der Erfindung sind weitere Ausführungsformen von Oberwalzenträgern möglich. Beispielsweise kann anstelle der in den Figuren gezeigten Flügel 23, 30, 65, die mit der Halteeinrichtung 2, 41 ein einstückiges Teil bilden, ein Flügel verwendet werden, der als separates Teil ausgeführt ist und an der Halteeinrichtung 2, 41 befestigt ist.In the context of the invention, further embodiments of Oberwalzenträgern are possible. For example, instead of the
Claims (8)
- Top roller carrier for drafting systems in spinning machines with at least one pair of feed rollers, one pair of apron rollers and one pair of output rollers as top rollers and with holding devices for the top rollers, wherein the top rollers are rotatably mounted on the ends of axles and the axles are held centrally, in each case, between the top rollers, wherein a common holding device (2, 41) is provided for the axle (5, 51) of the output rollers (8, 43) and the axle (6, 50) of the apron rollers (7, 42), which holding device is movably connected to the top roller carrier (1, 40),
characterised in that
the holding device (2, 41) with the axle mounts (3, 4, 48, 49) for the axles (5, 6, 50, 51) of the output rollers (8, 43) and the apron rollers (7, 42) is made from a one piece plastic component, whereby the axial mounts (3, 4, 48, 49) are arranged a fixed distance apart from one another, and in that a top apron deflecting device is part of the one piece component. - Top roller carrier according to claim 1, characterised in that the top apron deflection device is configured as a vane (23, 30, 65) and ends at the free end with a deflection edge (25).
- Top roller carrier according to claim 1 or 2, characterised in that the top belt defecting device is designed as a vane (30), at the free end of which a chrome-plated, replaceable metal bar (32) is secured for deflecting the top apron (24, 26), whereby the metal bar (32) can alternatively be positioned in at least two positions.
- Top roller carrier according to any one of the preceding claims, characterised in that the holding device (2, 41) has a slot (33, 64) serving as a guiding slide, in which a rotationally-symmetrical shaped belt tensioner (35, 63) is guided, which is aligned axially parallel to the top rollers (7, 8, 42, 43, 47) and can be moved relative to the holding device (2, 41) under the effect of tensioning.
- Top roller carrier according to any one of the preceding claims, characterised in that the plastic material is polyoxymethylene.
- Top roller carrier according to one of the preceding claims, characterised in that the plastic material is electrically conductive.
- Top roller carrier according to claim 1, characterised in that the spacing between the apron roller (7, 42) and the feed roller (47) can be adjusted.
- Top roller carrier according to one of the preceding claims, characterised in that the axle mounts (3, 4, 48, 49) are designed as an elastic snap connection.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005005382A DE102005005382A1 (en) | 2005-02-05 | 2005-02-05 | Top roller carrier for drafting systems on spinning machines |
PCT/EP2005/011964 WO2006081852A1 (en) | 2005-02-05 | 2005-11-09 | Top cylinder carrier for drafting systems in spinning machines. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1848847A1 EP1848847A1 (en) | 2007-10-31 |
EP1848847B1 true EP1848847B1 (en) | 2011-07-06 |
Family
ID=35708980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05807852A Not-in-force EP1848847B1 (en) | 2005-02-05 | 2005-11-09 | Top cylinder carrier for drafting systems in spinning machines. |
Country Status (7)
Country | Link |
---|---|
US (1) | US7624563B2 (en) |
EP (1) | EP1848847B1 (en) |
JP (1) | JP4691111B2 (en) |
CN (1) | CN100540770C (en) |
DE (1) | DE102005005382A1 (en) |
ES (1) | ES2364758T3 (en) |
WO (1) | WO2006081852A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007038600A1 (en) * | 2007-08-16 | 2009-02-19 | Accotex-Texparts Gmbh | Operating lever of a top roller support and loading arm |
RU2471898C2 (en) * | 2011-02-09 | 2013-01-10 | Государственное образовательное учреждение высшего профессионального образования "Ивановская государственная текстильная академия"(ИГТА) | Device for thread release at spinning machine |
CH709566A1 (en) * | 2014-04-28 | 2015-10-30 | Rieter Ag Maschf | Trigger assembly for a spinning machine. |
DE102019110880A1 (en) * | 2019-04-26 | 2020-10-29 | Saurer Intelligent Technology AG | Carrying device for a strap stretching unit |
LU102828B1 (en) * | 2021-06-10 | 2022-12-12 | Saurer Spinning Solutions Gmbh & Co Kg | Upper apron holder for an apron drafting system of a textile machine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB817206A (en) * | 1957-11-29 | 1959-07-29 | Ernst Toenniessen | Draft mechanism for spinning machines |
DE1990776U (en) * | 1968-08-01 | Maschinenfabrik Rieter A.G., Winterthur (Schweiz) | Upper roller saddle arrangement for spinning machine drafting systems | |
GB691615A (en) * | 1950-09-07 | 1953-05-20 | Ver Kugellagerfabriken Ag | Drawing systems for textile spinning frames |
CH375638A (en) * | 1959-09-11 | 1964-02-29 | Rieter Ag Maschf | Guide and loading arm on the drafting system of a spinning machine |
US3256570A (en) * | 1962-08-10 | 1966-06-21 | Nitto Boseki Co Ltd | Top roll mounting means for spinning machines |
US3283367A (en) * | 1963-10-25 | 1966-11-08 | Dixie Machine & Tool Company | Suspension and weighting means of top rolls of a drafting machine |
JPS5940928B2 (en) * | 1980-04-30 | 1984-10-03 | 村田機械株式会社 | Drive transmission method for draft device in spinning machine |
US4538329A (en) * | 1980-10-31 | 1985-09-03 | Murata Kikai Kabushiki Kaisha | Draft device |
DE3937667C2 (en) | 1989-11-11 | 1998-07-30 | Diethelm Stroeder | Device for garnishing a ceramic handle to a ceramic container |
DE9214598U1 (en) | 1992-10-28 | 1992-12-10 | SKF Textilmaschinen-Komponenten GmbH, 7000 Stuttgart | Top apron holder for spinning machine drafting systems |
DE4335889C2 (en) * | 1993-10-21 | 1996-07-11 | Skf Textilmasch Komponenten | Top roller carrier for drafting systems of spinning machines |
JP3438584B2 (en) * | 1998-05-08 | 2003-08-18 | 株式会社豊田自動織機 | Top apron cradle in spinning machine |
DE10321893A1 (en) * | 2003-05-07 | 2004-12-02 | Spindelfabrik Süssen Schurr, Stahlecker & Grill GmbH | Upper belt cage for spinning assembly has a main shell with an interchangeable belt reverse-guide attached to the shell |
-
2005
- 2005-02-05 DE DE102005005382A patent/DE102005005382A1/en not_active Withdrawn
- 2005-11-09 ES ES05807852T patent/ES2364758T3/en active Active
- 2005-11-09 EP EP05807852A patent/EP1848847B1/en not_active Not-in-force
- 2005-11-09 WO PCT/EP2005/011964 patent/WO2006081852A1/en active Application Filing
- 2005-11-09 CN CNB2005800478027A patent/CN100540770C/en not_active Expired - Fee Related
- 2005-11-09 US US11/883,620 patent/US7624563B2/en not_active Expired - Fee Related
- 2005-11-09 JP JP2007553471A patent/JP4691111B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
ES2364758T3 (en) | 2011-09-13 |
EP1848847A1 (en) | 2007-10-31 |
WO2006081852A1 (en) | 2006-08-10 |
JP2008528824A (en) | 2008-07-31 |
CN101115871A (en) | 2008-01-30 |
US20080040894A1 (en) | 2008-02-21 |
US7624563B2 (en) | 2009-12-01 |
CN100540770C (en) | 2009-09-16 |
JP4691111B2 (en) | 2011-06-01 |
DE102005005382A1 (en) | 2006-08-10 |
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