EP3191390B1 - Coating for a rotating plate - Google Patents

Coating for a rotating plate Download PDF

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Publication number
EP3191390B1
EP3191390B1 EP15767438.3A EP15767438A EP3191390B1 EP 3191390 B1 EP3191390 B1 EP 3191390B1 EP 15767438 A EP15767438 A EP 15767438A EP 3191390 B1 EP3191390 B1 EP 3191390B1
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EP
European Patent Office
Prior art keywords
coating
cover
base body
rotary plate
layer
Prior art date
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Active
Application number
EP15767438.3A
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German (de)
French (fr)
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EP3191390A1 (en
Inventor
Michael Strobel
Imadettin Karalar
Gerhard Schwaiger
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.)
Rieter Ingolstadt GmbH
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Rieter Ingolstadt GmbH
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Publication date
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Publication of EP3191390A1 publication Critical patent/EP3191390A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • B65H54/80—Apparatus in which the depositing device or the receptacle is rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0428—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements for cans, boxes and other receptacles
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/16—Electroplating with layers of varying thickness
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G27/00—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/311—Slivers

Definitions

  • the present invention relates to a turntable and a method for producing the turntable for a spinning machine, in particular a draw frame or card, for storing a sliver in a can, with a base body and a belt channel arranged in the base body.
  • a turntable of a spinning machine in particular draw frame, card or combing machine
  • the rotary table and a sliver to be processed in the machine come into contact with each other during machine operation.
  • An underside surface of the turntable that comes into contact with the sliver has an at least partially spatial structure of elevations and depressions, the elevations being honeycomb-shaped.
  • the spatial structure generally serves to reduce the friction between the sliver when the turntable contacts it. Excessive friction leads to a pulling of fibers of the fiber sliver, which is stored in a container, due to a rotary movement of the turntable. Such dragging can result in uncontrolled laying down and damage to the sliver.
  • the object of the invention is therefore to provide a spatial structure on a turntable, which has the friction between the turntable and the sliver reduced and thus prevents dragging of fibers of different fiber materials with different properties.
  • the object is achieved by a turntable for a spinning machine and a method for producing the turntable according to the independent claims.
  • a rotary table of a spinning machine in particular a draw frame or card, is proposed for depositing a sliver in a can, with a base body and a belt channel arranged in the base body.
  • the side of the turntable facing the can has at least partially a coating with a spatial structure made of spherical, irregular elevations.
  • the intended use of the turntable is generally that the turntable is arranged above the can and thereby performs a rotary movement about a vertical axis.
  • the jug is usually a cylindrical container, which is closed at the bottom. Sliver is placed in the jug through an upper opening in the jug.
  • the band channel is arranged, through which the sliver runs and is deposited down into the can.
  • the coating comes into contact with the sliver already placed in the can.
  • the special coating with the spatial structure of spherical, irregular elevations prevents the fibers of the sliver from being pulled along by the turntable.
  • the spherical, irregular elevations reduce the contact area between the coating and the sliver, since only one the upper area of the spherical elevation comes into contact with the sliver and exerts only a slight friction on the sliver.
  • the coating is arranged on a cover, the cover being fastened to the side of the base body facing the can.
  • a coating directly on the base body accelerates the manufacturing process, reduces the cost of materials and thus saves overall manufacturing costs.
  • the cover is glued and / or screwed to the base body.
  • the cover is rolled into a groove on the base body with an edge protruding beyond the base body. Gluing can be used to save manufacturing costs.
  • a screw connection is used when the cover is to be releasably attached to the base body. And rolling the protruding edge into a groove on the base body is easy to do with a machine.
  • the coating is formed in sections on the cover.
  • the coating is spaced from the edge at which the cover is rolled up. This saves costs because only a smaller area of the cover is coated. In addition, it is ensured that reshaping after the coating no longer deforms the coated area and the coating is not damaged as a result.
  • the coating is formed from at least one base layer, structural layer and / or cover layer.
  • a base layer is generally required to form a defined base for the structure layer.
  • the base layer is similar rougher bumps of the base body and forms a smooth surface to which the structural layer can be applied.
  • the structure layer forms the spatial structure from spherical, irregular elevations.
  • the top layer is applied to protect the structural layer from wear.
  • a protective cover layer over the structural layer it is e.g. conceivable to form the structural layer from a softer material in order to simplify the manufacturing process.
  • the base layer, structural layer and / or cover layer are formed from different materials.
  • base layer and / or a cover layer can also be dispensed with.
  • the coating is made of chrome and / or a chrome alloy, this also has advantages.
  • the coating of such a material is particularly resistant to signs of wear.
  • the chrome and / or the chrome alloy can be easily cleaned or polished.
  • the elevations have an extent in the range from 0.1 ⁇ m to 10 ⁇ m, in particular 0.6 ⁇ m to 4 ⁇ m. With an expansion of the elevations in this size range, an effect on the sliver acts that is similar to the lotus effect known from nature.
  • the gaps between the surveys are too small for that the sliver or its fibers can get caught in between. This prevents the fibers of the sliver from being pulled through the interspaces.
  • the elevations are arranged and dimensioned such that an air cushion can form in the spaces. This air cushion can also extend beyond the elevations, so that the fiber band only comes into indirect contact with the coating by means of the air cushion.
  • a method is also proposed for producing a turntable of a spinning machine, in particular a draw frame or card, for depositing a sliver in a can, with a base body and a ribbon channel arranged in the base body.
  • a coating with a spatial structure of spherical, irregular elevations is at least partially applied to the side of the turntable facing the can when the turntable is provided. Applying the coating with a spatial structure made of spherical, irregular elevations prevents the fiber sliver or its fibers from being pulled along by the turntable.
  • the coating is arranged on a cover, the cover being fastened to the side of the base body facing the can. If the coating is arranged on the base body, this leads to cost savings through material savings and faster production. However, if the coating is applied to the cover, this leads to a simpler coating process, since only the cover is required for the coating process. The cover can then be attached to the base body in simple steps.
  • the cover can of course also be screwed to the base body. This method can be used to cover e.g. to be able to remove for maintenance purposes. This also makes it possible to replace the entire cover.
  • the cover is rolled into a groove on the base body with an edge protruding beyond the base body.
  • the coating is formed in sections on the cover.
  • the coating is formed at a distance from the edge at which the cover is rolled up. In this way, costs can be saved since only a smaller area of the cover and / or the base body is coated, and damage to the coating during the deformation of the cover is prevented.
  • the coating is formed from at least one base layer, structural layer and / or cover layer.
  • the base layer serves as the base for the structural layer.
  • the base layer also serves the purpose of compensating for possible unevenness in the underlying material of the base body or the cover.
  • the base layer forms a smooth surface for the structural layer.
  • the structure layer contains the spatial structure of spherical, irregular elevations and is applied to the base layer after this. A final top coat is applied last, and is used for "sealing", or in general for protecting the structural layer from external influences.
  • the methods for applying the respective layers are as follows.
  • the base layer can be applied by a conventional electroplating process.
  • a gas separation process, chromating or other processes with which a suitable base layer can be produced are also conceivable.
  • the structure layer is applied in a closed reactor.
  • the process of galvanic chrome deposition is also used.
  • the properties of nucleation processes are exploited in this process for producing the structural layer.
  • Germ cells gradually form on the base layer and grow spherically with the duration of the process.
  • the irregular structure of the elevations is caused by the random emergence of the germ cells on the base layer.
  • the extent, distribution on the surface, growth rate or the like of the elevations can be controlled. For example, the temperature inside the reactor affects the growth rate of the bumps.
  • the structure layer can then be reproduced by setting the same physical parameters for each method. This method also achieves high dimensional accuracy.
  • a cover layer is applied by various methods, similar to that of the base layer. It should be noted here that the top layer is not applied too thickly, as otherwise the desired elevations (and the recesses in between) will be balanced with the top layer.
  • chrome plating is the wear resistance and resistance to various aggressive gases and liquids.
  • FIG 1 a schematic structure of a turntable 1 is shown.
  • the turntable 1 consists of a base body 2 and a belt channel 3 arranged in the base body 2.
  • a sliver (not shown here) is passed through the belt channel 3 and leaves the turntable 1 downwards through an opening 4 in the belt channel 3 and the base body 2.
  • a cover 5 is fastened to the base body 2 on the underside of the turntable 1 and also has the opening 4. This underside is the side facing a can when the turntable 1 is provided.
  • a coating 6 is applied, which in Figure 2 is explained in more detail.
  • FIG 2a a cross section of the coating 6 is shown with spherical, irregular elevations 11.
  • the coating 6 is applied to a base material 7.
  • the base material 7 can be part of the cover 5 or part of the base body 2.
  • the coating 6 has three individual layers, namely a base layer 8, a structural layer 9 and a cover layer 10.
  • the base layer 8 adjoins the base material 7 and serves, for example, as a carrier layer for the structural layer 9 or compensates for unevenness in the base material 7.
  • the structural layer 9 with the spherical, irregular elevations 11 is applied to the base layer 8. As can be seen, the elevations 11 have different sizes.
  • the cover layer 10 closes the coating 6 from the outside.
  • FIG 2b is a similar cross section of the coating 6 as in Figure 2a shown. Therefore, the same components as in Figure 2a received.
  • the elevations 11 are arranged less densely on the base layer 8, ie the number of elevations 11 per unit area is less than in FIG Figure 2a .
  • Two elevations 11 can have a distance that can be in the range of several orders of magnitude of an average elevation 11. If an average elevation 11 has an extension in the range of, for example, 5 ⁇ m, then the distance between two elevations 11 can be, for example, 50 ⁇ m. However, it is also conceivable that the distance between two elevations 11 is only a fraction of the extent of one elevation 11. For example, it is also possible for the distance between two elevations 11 to be only 1-2 ⁇ m or even less.
  • FIG 3 a detail from an edge region of the turntable 1 with the cover 5 is shown.
  • a groove 12 is arranged in an edge region of the base body 2 of the turntable 1.
  • the cover 5 is fastened to the base body 2 by rolling the sides of the cover 5 into the groove 12 are.
  • the coating 6, which is shown only hinted at in comparison to the turntable 1 because of its small extent, is arranged on the cover 5. However, the coating 6 does not reach the area in which the cover 5 is rolled up. This is therefore a section in which no coating 6 is arranged.

Description

Die vorliegende Erfindung betrifft einen Drehteller und ein Verfahren zur Herstellung des Drehtellers für eine Spinnereimaschine, insbesondere Strecke oder Karde, zur Ablage eines Faserbandes in einer Kanne, mit einem Grundkörper und einem in dem Grundkörper angeordneten Bandkanal.The present invention relates to a turntable and a method for producing the turntable for a spinning machine, in particular a draw frame or card, for storing a sliver in a can, with a base body and a belt channel arranged in the base body.

Aus der DE 103 34 758 B4 ist ein Drehteller einer Spinnereimaschine, insbesondere Strecke, Karde oder Kämmmaschine, bekannt. Dabei kommen im Maschinenbetrieb der Drehteller und ein in der Maschine zu verarbeitendes Faserband miteinander in Berührung. Eine mit dem Faserband in Berührung kommende unterseitige Oberfläche des Drehtellers weist hierbei eine zumindest abschnittsweise räumliche Struktur aus Erhebungen und Vertiefungen auf, wobei die Erhebungen wabenförmig ausgebildet sind. Die räumliche Struktur dient im Allgemeinen dazu, bei der Berührung des Drehtellers mit dem Faserband die Reibung zwischen diesen zu verringern. Eine zu hohe Reibung führt dabei durch eine Drehbewegung des Drehtellers zu einem Mitziehen von Faserns des Faserbandes, welches in einem Behälter abgelegt ist,. Durch ein solches Mitziehen kann es zu einem unkontrollierten Ablegen und einer Beschädigung des Faserbandes kommen.From the DE 103 34 758 B4 is a turntable of a spinning machine, in particular draw frame, card or combing machine, is known. The rotary table and a sliver to be processed in the machine come into contact with each other during machine operation. An underside surface of the turntable that comes into contact with the sliver has an at least partially spatial structure of elevations and depressions, the elevations being honeycomb-shaped. The spatial structure generally serves to reduce the friction between the sliver when the turntable contacts it. Excessive friction leads to a pulling of fibers of the fiber sliver, which is stored in a container, due to a rotary movement of the turntable. Such dragging can result in uncontrolled laying down and damage to the sliver.

Nachteilig ist jedoch bei diesen wabenförmigen Erhebungen, dass diese ursprünglich für die Verarbeitung einer speziellen Polyesterart konzipiert und validiert wurde. Bei den heutigen verwendeten Polyestersorten von verschiedenen Herstellern mit ihren untereinander unterschiedlichen Eigenschaften, tritt dieser Effekt des Mitziehens jedoch trotz der wabenförmigen Erhebungen auf. Auch bei anderen Fasermaterialien, wie z.B. Baumwolle, tritt dieser negative Effekt auf.A disadvantage of these honeycomb surveys is that they were originally designed and validated for the processing of a special type of polyester. In the polyester types used today by different manufacturers with their mutually different properties, this pull-along effect occurs despite the honeycomb-shaped elevations. Also with other fiber materials, e.g. Cotton, this negative effect occurs.

Aufgabe der Erfindung ist es somit, eine räumliche Struktur auf einem Drehteller zu schaffen, welche die Reibung zwischen dem Drehteller und dem Faserband verringert und so ein Mitziehen von Fasern verschiedenster Fasermaterialien mit unterschiedlichen Eigenschaften verhindert.The object of the invention is therefore to provide a spatial structure on a turntable, which has the friction between the turntable and the sliver reduced and thus prevents dragging of fibers of different fiber materials with different properties.

Die Aufgabe wird gelöst durch einen Drehteller für eine Spinnereimaschine und ein Verfahren zur Herstellung des Drehtellers nach den unabhängigen Ansprüchen.The object is achieved by a turntable for a spinning machine and a method for producing the turntable according to the independent claims.

Vorgeschlagen wird ein Drehteller einer Spinnereimaschine, insbesondere einer Strecke oder Karde, zur Ablage eines Faserbandes in einer Kanne, mit einem Grundkörper und einem in dem Grundkörper angeordneten Bandkanal.A rotary table of a spinning machine, in particular a draw frame or card, is proposed for depositing a sliver in a can, with a base body and a belt channel arranged in the base body.

Erfindungsgemäß weist die, bei vorgesehener Verwendung des Drehtellers, der Kanne zugewandten Seite des Drehtellers zumindest teilweise eine Beschichtung mit einer räumlichen Struktur aus kugelförmigen, unregelmäßigen Erhebungen auf.According to the invention, the intended use of the turntable, the side of the turntable facing the can has at least partially a coating with a spatial structure made of spherical, irregular elevations.

Dabei ist die vorgesehene Verwendung des Drehtellers im Allgemeinen die, dass der Drehteller oberhalb der Kanne angeordnet ist und dabei eine Drehbewegung um eine vertikale Achse ausführt. Die Kanne ist dabei in der Regel ein zylindrisches Behältnis, welches nach unten verschlossen ist. Durch eine obere Öffnung der Kanne wird Faserband in der Kanne abgelegt.The intended use of the turntable is generally that the turntable is arranged above the can and thereby performs a rotary movement about a vertical axis. The jug is usually a cylindrical container, which is closed at the bottom. Sliver is placed in the jug through an upper opening in the jug.

In dem Grundkörper des Drehtellers ist der Bandkanal angeordnet, durch den das Faserband verläuft und nach unten in die Kanne abgelegt wird. Üblicherweise kommt dabei die Beschichtung mit dem bereits in die Kanne abgelegten Faserband in Kontakt. Durch die besondere Beschichtung mit der räumlichen Struktur aus kugelförmigen, unregelmäßigen Erhebungen wird das Mitziehen von Fasern des Faserbandes durch den Drehteller verhindert. Durch die kugelförmigen, unregelmäßigen Erhebungen wird die Kontaktfläche zwischen der Beschichtung und dem Faserband verringert, da nur ein oberer Bereich der kugelförmigen Erhebung mit dem Faserband in Berührung kommt und nur eine geringe Reibung auf das Faserband ausübt.In the base body of the turntable, the band channel is arranged, through which the sliver runs and is deposited down into the can. Usually, the coating comes into contact with the sliver already placed in the can. The special coating with the spatial structure of spherical, irregular elevations prevents the fibers of the sliver from being pulled along by the turntable. The spherical, irregular elevations reduce the contact area between the coating and the sliver, since only one the upper area of the spherical elevation comes into contact with the sliver and exerts only a slight friction on the sliver.

Die Beschichtung ist auf einer Abdeckung angeordnet, wobei die Abdeckung an der der Kanne zugewandten Seite des Grundkörpers befestigt ist. Eine Beschichtung direkt auf dem Grundkörper beschleunigt den Herstellungsprozess, verringert den Materialaufwand und spart somit insgesamt Herstellungskosten ein. Dagegen ist es von Vorteil, wenn zuerst auf einer separaten Abdeckung die Beschichtung angeordnet wird. Dies vereinfacht den Herstellungsprozess, da nur die Abdeckung für den Beschichtungsvorgang benötigt wird und die Abdeckung anschließend nur an dem Grundkörper befestigt werden muss. Ebenfalls kann so die Abdeckung zu Reparaturzwecken abgenommen werden oder komplett ausgetauscht werden.The coating is arranged on a cover, the cover being fastened to the side of the base body facing the can. A coating directly on the base body accelerates the manufacturing process, reduces the cost of materials and thus saves overall manufacturing costs. In contrast, it is advantageous if the coating is first arranged on a separate cover. This simplifies the manufacturing process since only the cover is required for the coating process and the cover then only has to be attached to the base body. The cover can also be removed for repair purposes or completely replaced.

Ein zusätzlicher Vorteil ist es, wenn die Abdeckung an den Grundkörper geklebt und/oder mit diesem verschraubt ist. Die Abdeckung ist mit einem über den Grundkörper überstehenden Rand in eine Nut am Grundkörper eingerollt. Ein Verkleben kann angewendet werden, um Herstellungskosten einzusparen. Eine Verschraubung wird angewendet, wenn die Abdeckung lösbar an die Grundkörper angebracht werden soll. Und ein Einrollen des überstehenden Randes in eine Nut am Grundkörper ist mit einer Maschine einfach durchzuführen.It is an additional advantage if the cover is glued and / or screwed to the base body. The cover is rolled into a groove on the base body with an edge protruding beyond the base body. Gluing can be used to save manufacturing costs. A screw connection is used when the cover is to be releasably attached to the base body. And rolling the protruding edge into a groove on the base body is easy to do with a machine.

Besonders von Vorteil ist es, wenn die Beschichtung abschnittsweise auf der Abdeckung ausgebildet ist. Die Beschichtung ist von dem Rand beabstandet, an dem die Abdeckung eingerollt ist. So können Kosten eingespart werden, da nur eine geringere Fläche der Abdeckung beschichtet wird. Darüber hinaus wird sichergestellt, dass durch eine Umformung nach der Beschichtung der beschichtete Bereich nicht mehr verformt wird und dadurch die Beschichtung nicht beschädigt wird.It is particularly advantageous if the coating is formed in sections on the cover. The coating is spaced from the edge at which the cover is rolled up. This saves costs because only a smaller area of the cover is coated. In addition, it is ensured that reshaping after the coating no longer deforms the coated area and the coating is not damaged as a result.

Außerdem ist es von Vorteil, wenn die Beschichtung aus zumindest einer Basisschicht, Strukturschicht und/oder Deckschicht ausgebildet ist. Eine Basisschicht wird im Allgemeinen dafür benötigt, um einen definierten Untergrund für die Strukturschicht zu bilden. So gleicht die Basisschicht z.B. gröbere Unebenheiten des Grundkörpers aus und bildet eine glatte Oberfläche, auf welche die Strukturschicht aufgebracht werden kann.It is also advantageous if the coating is formed from at least one base layer, structural layer and / or cover layer. A base layer is generally required to form a defined base for the structure layer. For example, the base layer is similar rougher bumps of the base body and forms a smooth surface to which the structural layer can be applied.

Die Strukturschicht bildet die räumliche Struktur aus kugelförmigen, unregelmäßigen Erhebungen aus.The structure layer forms the spatial structure from spherical, irregular elevations.

Die Deckschicht wird aufgebracht, um die Strukturschicht vor Verschleiß zu schützen. Mit einer schützenden Deckschicht über der Strukturschicht ist es z.B. denkbar die Strukturschicht aus einem weicheren Material auszubilden, um so den Herstellungsprozess zu vereinfachen. Allgemein ist es natürlich denkbar, dass Basisschicht, Strukturschicht und/oder Deckschicht aus verschiedenen Materialien ausgebildet sind.The top layer is applied to protect the structural layer from wear. With a protective cover layer over the structural layer it is e.g. conceivable to form the structural layer from a softer material in order to simplify the manufacturing process. In general, it is of course conceivable that the base layer, structural layer and / or cover layer are formed from different materials.

Auf die Verwendung einer Basisschicht und/oder einer Deckschicht kann auch verzichtet werden.The use of a base layer and / or a cover layer can also be dispensed with.

Wenn die Beschichtung aus Chrom und/oder einer Chromlegierung ausgebildet ist, bringt das ebenfalls Vorteile mit sich. Die Beschichtung aus einem derartigen Material ist besonders resistent gegen Verschleißerscheinungen. Daneben lässt sich das Chrom und/oder die Chromlegierung leicht säubern bzw. polieren.If the coating is made of chrome and / or a chrome alloy, this also has advantages. The coating of such a material is particularly resistant to signs of wear. In addition, the chrome and / or the chrome alloy can be easily cleaned or polished.

Ein weiterer Vorteil ist es, wenn die Erhebungen eine Ausdehnung im Bereich von 0,1 µm bis 10 µm, insbesondere 0,6 µm bis 4 µm, aufweisen. Bei einer Ausdehnung der Erhebungen in diesem Größenbereich wirkt ein Effekt auf das Faserband der dem aus der Natur bekannten Lotuseffekt ähnlich ist. Die Zwischenräume zwischen den Erhebungen sind zu klein, als dass sich das Faserband oder dessen Fasern dazwischen verhaken können. Dadurch wird ein Mitziehen der Fasern des Faserbandes durch die Zwischenräume verhindert. Jedoch sind die Erhebungen derart angeordnet und dimensioniert, dass sich in den Zwischenräumen ein Luftpolster ausbilden kann. Dieses Luftpolster kann dabei auch über die Erhebungen hinweg reichen, so dass das Faserband mittels des Luftpolsters nur indirekt mit der Beschichtung in Berührung kommt. Das Luftpolster führt so schließlich zu einer Verringerung der Gleitreibung und das Mitziehen wird verhindert. Vorgeschlagen wird ferner ein Verfahren zur Herstellung eines Drehtellers einer Spinnereimaschine, insbesondere Strecke oder Karde, zur Ablage eines Faserbandes in einer Kanne, mit einem Grundkörper und einem in dem Grundkörper angeordneten Bandkanal.It is a further advantage if the elevations have an extent in the range from 0.1 μm to 10 μm, in particular 0.6 μm to 4 μm. With an expansion of the elevations in this size range, an effect on the sliver acts that is similar to the lotus effect known from nature. The gaps between the surveys are too small for that the sliver or its fibers can get caught in between. This prevents the fibers of the sliver from being pulled through the interspaces. However, the elevations are arranged and dimensioned such that an air cushion can form in the spaces. This air cushion can also extend beyond the elevations, so that the fiber band only comes into indirect contact with the coating by means of the air cushion. The air cushion ultimately leads to a reduction in sliding friction and dragging is prevented. A method is also proposed for producing a turntable of a spinning machine, in particular a draw frame or card, for depositing a sliver in a can, with a base body and a ribbon channel arranged in the base body.

Erfindungsgemäß wird dabei auf die, bei vorgesehener Verwendung des Drehtellers, der Kanne zugewandten Seite des Drehtellers zumindest teilweise eine Beschichtung mit einer räumlichen Struktur aus kugelförmigen, unregelmäßigen Erhebungen aufgebracht. Durch das Aufbringen der Beschichtung mit einer räumlichen Struktur aus kugelförmigen, unregelmäßigen Erhebungen wird ein Mitziehen des Faserbandes bzw. dessen Fasern durch den Drehteller verhindert.According to the invention, a coating with a spatial structure of spherical, irregular elevations is at least partially applied to the side of the turntable facing the can when the turntable is provided. Applying the coating with a spatial structure made of spherical, irregular elevations prevents the fiber sliver or its fibers from being pulled along by the turntable.

Die Beschichtung wird auf einer Abdeckung angeordnet, wobei die Abdeckung an der der Kanne zugewandten Seite des Grundkörpers befestigt wird. Wird die Beschichtung auf dem Grundkörper angeordnet, führt dies zu Kostenersparnissen durch Materialeinsparungen und einer schnelleren Fertigung. Wird dagegen jedoch die Beschichtung auf der Abdeckung aufgebracht, führt dies zu einem einfacheren Beschichtungsvorgang, da nur die Abdeckung für den Beschichtungsvorgang benötigt wird. Anschließend kann die Abdeckung durch einfache Arbeitsschritte auf dem Grundkörper befestigt werden.The coating is arranged on a cover, the cover being fastened to the side of the base body facing the can. If the coating is arranged on the base body, this leads to cost savings through material savings and faster production. However, if the coating is applied to the cover, this leads to a simpler coating process, since only the cover is required for the coating process. The cover can then be attached to the base body in simple steps.

Außerdem ist es von Vorteil, wenn die Abdeckung an dem Grundkörper geklebt wird. Das Kleben ist dabei ein einfacher und schneller Vorgang, da hier weder die Abdeckung oder der Grundkörper durch mehrere Arbeitsschritte behandelt werden müssen.It is also advantageous if the cover is glued to the base body. Gluing is a simple and quick process since neither the cover nor the base body has to be treated in several steps.

Zusätzlich oder alternativ kann natürlich die Abdeckung auch an den Grundkörper geschraubt werden. Diese Methode kann dazu benutzt werden, um die Abdeckung z.B. zu Wartungszwecken entfernen zu können. Dadurch wird es auch möglich die komplette Abdeckung auszutauschen.Additionally or alternatively, the cover can of course also be screwed to the base body. This method can be used to cover e.g. to be able to remove for maintenance purposes. This also makes it possible to replace the entire cover.

Die Abdeckung wird mit einem über den Grundkörper überstehenden Rand in eine Nut am Grundkörper eingerollt. Vorteilhaft hierbei ist, dass das Einrollen einfach mit einer Maschine durchgeführt werden kann und so ebenfalls Produktionszeit und -kosten eingespart werden.The cover is rolled into a groove on the base body with an edge protruding beyond the base body. The advantage here is that the curling up can be carried out easily with one machine, thus also saving production time and costs.

Ferner ist es von Vorteil, wenn die Beschichtung abschnittsweise auf der Abdeckung ausgebildet wird. Die Beschichtung wird von dem Rand beabstandet ausgebildet, an dem die Abdeckung eingerollt wird. So können Kosten eingespart werden, da nur noch eine geringere Fläche der Abdeckung und/oder des Grundkörpers beschichtet werden und eine Beschädigung der Beschichtung bei der Umformung der Abdeckung wird verhindert.It is also advantageous if the coating is formed in sections on the cover. The coating is formed at a distance from the edge at which the cover is rolled up. In this way, costs can be saved since only a smaller area of the cover and / or the base body is coated, and damage to the coating during the deformation of the cover is prevented.

Ganz besonders von Vorteil ist, wenn die Beschichtung aus zumindest einer Basisschicht, Strukturschicht und/oder Deckschicht ausgebildet wird. Dabei dient die Basisschicht als Untergrund für die Strukturschicht. Die Basisschicht erfüllt des Weiteren den Zweck, dass mögliche Unebenheiten in dem darunterliegenden Material des Grundkörpers oder der Abdeckung ausgeglichen werden. Die Basisschicht bildet für die Strukturschicht eine glatte Fläche. Die Strukturschicht beinhaltet die räumliche Struktur aus kugelförmigen, unregelmäßigen Erhebungen und wird im Anschluss an die Basisschicht auf diese aufgetragen. Eine abschließende Deckschicht wird als Letztes aufgebracht, und dient zur "Versiegelung", oder im Allgemeinen zum Schutz der Strukturschicht vor äußeren Einflüssen.It is particularly advantageous if the coating is formed from at least one base layer, structural layer and / or cover layer. The base layer serves as the base for the structural layer. The base layer also serves the purpose of compensating for possible unevenness in the underlying material of the base body or the cover. The base layer forms a smooth surface for the structural layer. The structure layer contains the spatial structure of spherical, irregular elevations and is applied to the base layer after this. A final top coat is applied last, and is used for "sealing", or in general for protecting the structural layer from external influences.

Die Verfahren zum Auftragen der jeweiligen Schichten sind dabei die folgenden. Die Basisschicht kann durch einen üblichen Galvanisierungsvorgang aufgebracht werden. Denkbar sind aber auch ein Gasabscheideverfahren, Chromatieren oder andere Verfahren, mit der eine geeignete Basisschicht hergestellt werden kann.The methods for applying the respective layers are as follows. The base layer can be applied by a conventional electroplating process. However, a gas separation process, chromating or other processes with which a suitable base layer can be produced are also conceivable.

Das Aufbringen der Strukturschicht wird in einem abgeschlossenen Reaktor durchgeführt. Dabei wird ebenfalls das Verfahren der galvanischen Chromabscheidung benutzt. Bei diesem Verfahren zur Herstellung der Strukturschicht werden die Eigenschaften von Keimbildungsprozessen ausgenutzt. Auf der Basisschicht bilden sich nach und nach Keimzellen, die mit der Verfahrensdauer kugelförmig anwachsen. Die unregelmäßige Struktur der Erhebungen kommt dabei durch ein zufälliges Entstehen der Keimzellen auf der Basisschicht zustande. Durch Veränderung der physikalischen Parameter in dem Reaktor kann die Ausdehnung, Verteilung auf der Oberfläche, Wachstumsgeschwindigkeit oder ähnliches der Erhebungen gesteuert werden. So hat z.B. die Temperatur innerhalb des Reaktors Einfluss auf die Wachstumsgeschwindigkeit der Erhebungen. Eine Reproduzierbarkeit der Strukturschicht ist dann dadurch gegeben, dass bei jedem Verfahren die gleichen physikalischen Parameter eingestellt werden. Durch dieses Verfahren wird daneben noch eine hohe Maßgenauigkeit erreicht.The structure layer is applied in a closed reactor. The process of galvanic chrome deposition is also used. The properties of nucleation processes are exploited in this process for producing the structural layer. Germ cells gradually form on the base layer and grow spherically with the duration of the process. The irregular structure of the elevations is caused by the random emergence of the germ cells on the base layer. By changing the physical parameters in the reactor, the extent, distribution on the surface, growth rate or the like of the elevations can be controlled. For example, the temperature inside the reactor affects the growth rate of the bumps. The structure layer can then be reproduced by setting the same physical parameters for each method. This method also achieves high dimensional accuracy.

Eine Deckschicht wird abschließend durch verschiedene Verfahren, ähnlich derer bei der Basisschicht, aufgetragen. Zu beachten ist hier, dass die Deckschicht nicht zu dick aufgetragen wird, da sonst mit der Deckschicht die gewollten Erhebungen (und die dazwischen liegenden Vertiefungen) ausgeglichen werden.Finally, a cover layer is applied by various methods, similar to that of the base layer. It should be noted here that the top layer is not applied too thickly, as otherwise the desired elevations (and the recesses in between) will be balanced with the top layer.

Wenn die Beschichtung aus Chrom und/oder einer Chromlegierung ausgebildet wird, bringt das ebenfalls Vorteile mit sich. Die Vorteile des "Verchromens" sind die Verschleißbeständigkeit und Beständigkeit gegen verschiedene aggressive Gase und Flüssigkeiten.If the coating is formed from chrome and / or a chrome alloy, this also has advantages. The advantages of "chrome plating" are the wear resistance and resistance to various aggressive gases and liquids.

Weitere Vorteile der Erfindung sind in den nachfolgenden Ausführungsbeispielen beschrieben. Es zeigt

Figur 1
einen schematischen Aufbau eines Drehtellers,
Figur 2a
einen Querschnitt einer Beschichtung mit kugelförmigen, unregelmäßigen Erhebungen,
Figur 2b
einen Querschnitt einer Beschichtung mit einer geringeren Anzahl an kugelförmigen, unregelmäßigen Erhebungen und
Figur 3
einen Ausschnitt aus einem Randbereich eines Drehtellers mit Abdeckung und Beschichtung.
Further advantages of the invention are described in the following exemplary embodiments. It shows
Figure 1
a schematic structure of a turntable,
Figure 2a
a cross section of a coating with spherical, irregular elevations,
Figure 2b
a cross section of a coating with a smaller number of spherical, irregular elevations and
Figure 3
a section of an edge area of a turntable with cover and coating.

In Figur 1 ist ein schematischer Aufbau einer Drehtellers 1 gezeigt. Der Drehteller 1 besteht dabei aus einem Grundkörper 2 und einem in dem Grundkörper 2 angeordneten Bandkanal 3. Durch den Bandkanal 3 wird ein hier nicht gezeigtes Faserband geleitet, welches den Drehteller 1 durch eine Öffnung 4 des Bandkanals 3 und des Grundkörpers 2 nach unten verlässt. Eine Abdeckung 5 ist an der Unterseite des Drehtellers 1 an dem Grundkörper 2 befestigt und weist ebenfalls die Öffnung 4 auf. Diese Unterseite ist die einer bei vorgesehener Verwendung des Drehtellers 1 einer Kanne zugewandten Seite. Auf der unteren Oberfläche bzw. Unterseite der Abdeckung 5 ist eine Beschichtung 6 aufgebracht, welche in Figur 2 näher erläutert wird.In Figure 1 a schematic structure of a turntable 1 is shown. The turntable 1 consists of a base body 2 and a belt channel 3 arranged in the base body 2. A sliver (not shown here) is passed through the belt channel 3 and leaves the turntable 1 downwards through an opening 4 in the belt channel 3 and the base body 2. A cover 5 is fastened to the base body 2 on the underside of the turntable 1 and also has the opening 4. This underside is the side facing a can when the turntable 1 is provided. On the lower surface or underside of the cover 5, a coating 6 is applied, which in Figure 2 is explained in more detail.

In Figur 2a ist ein Querschnitt der Beschichtung 6 mit kugelförmigen, unregelmäßigen Erhebungen 11 dargestellt. Die Beschichtung 6 ist auf einem Untergrundmaterial 7 aufgebracht. Das Untergrundmaterial 7 kann dabei Teil der Abdeckung 5 oder Teil des Grundkörpers 2 sein. Die Beschichtung 6 weist drei Einzelschichten, nämlich eine Basisschicht 8, eine Strukturschicht 9 und eine Deckschicht 10 auf. Die Basisschicht 8 schließt an das Untergrundmaterial 7 an und dient z.B. als Trägerschicht für die Strukturschicht 9 oder gleicht Unebenheiten des Untergrundmaterials 7 aus. Auf der Basisschicht 8 ist die Strukturschicht 9 mit den kugelförmigen, unregelmäßigen Erhebungen 11 aufgebracht. Wie zu erkennen ist, weisen die Erhebungen 11 unterschiedliche Größen auf. Die Deckschicht 10 schließt die Beschichtung 6 nach außen ab.In Figure 2a a cross section of the coating 6 is shown with spherical, irregular elevations 11. The coating 6 is applied to a base material 7. The base material 7 can be part of the cover 5 or part of the base body 2. The coating 6 has three individual layers, namely a base layer 8, a structural layer 9 and a cover layer 10. The base layer 8 adjoins the base material 7 and serves, for example, as a carrier layer for the structural layer 9 or compensates for unevenness in the base material 7. The structural layer 9 with the spherical, irregular elevations 11 is applied to the base layer 8. As can be seen, the elevations 11 have different sizes. The cover layer 10 closes the coating 6 from the outside.

In Figur 2b ist ein ähnlicher Querschnitt der Beschichtung 6 wie in Figur 2a gezeigt. Deswegen wird hier nicht auf die gleichen Bestandteile wie in Figur 2a eingegangen. Jedoch sind die Erhebungen 11 weniger dicht auf der Basisschicht 8 angeordnet, d.h. die Anzahl von Erhebungen 11 pro Flächeneinheit ist geringer als in Figur 2a. Jeweils zwei Erhebungen 11 können dabei einen Abstand aufweisen, der im Bereich von mehreren Größenordnungen einer durchschnittlichen Erhebung 11 liegen kann. Wenn eine durchschnittliche Erhebung 11 eine Ausdehnung im Bereich von beispielsweise 5 µm aufweist, dann kann der Abstand zwischen jeweils zwei Erhebungen 11 beispielsweise 50 µm betragen. Es ist aber auch denkbar, dass der Abstand zwischen jeweils zwei Erhebungen 11 nur einen Bruchteil der Ausdehnung einer Erhebung 11 aufweist. So ist es z.B. auch möglich, dass der Abstand zwischen jeweils zwei Erhebungen 11 nur 1-2 µm beträgt oder gar noch weniger.In Figure 2b is a similar cross section of the coating 6 as in Figure 2a shown. Therefore, the same components as in Figure 2a received. However, the elevations 11 are arranged less densely on the base layer 8, ie the number of elevations 11 per unit area is less than in FIG Figure 2a . Two elevations 11 can have a distance that can be in the range of several orders of magnitude of an average elevation 11. If an average elevation 11 has an extension in the range of, for example, 5 μm, then the distance between two elevations 11 can be, for example, 50 μm. However, it is also conceivable that the distance between two elevations 11 is only a fraction of the extent of one elevation 11. For example, it is also possible for the distance between two elevations 11 to be only 1-2 μm or even less.

In Figur 3 ist ein Ausschnitt aus einem Randbereich des Drehtellers 1 mit der Abdeckung 5 gezeigt. In einem Randbereich des Grundkörpers 2 des Drehtellers 1 ist eine Nut 12 angeordnet. Die Abdeckung 5 ist an dem Grundkörper 2 befestigt indem die Seiten der Abdeckung 5 in die Nut 12 eingerollt sind. Die Beschichtung 6, welche wegen ihrer geringen Ausdehnung im Vergleich zum Drehteller 1 nur angedeutet dargestellt ist, ist auf der Abdeckung 5 angeordnet. Jedoch reicht die Beschichtung 6 nicht an den Bereich heran, in dem die Abdeckung 5 eingerollt ist. Dies ist somit ein Abschnitt, in dem keine Beschichtung 6 angeordnet ist.In Figure 3 a detail from an edge region of the turntable 1 with the cover 5 is shown. A groove 12 is arranged in an edge region of the base body 2 of the turntable 1. The cover 5 is fastened to the base body 2 by rolling the sides of the cover 5 into the groove 12 are. The coating 6, which is shown only hinted at in comparison to the turntable 1 because of its small extent, is arranged on the cover 5. However, the coating 6 does not reach the area in which the cover 5 is rolled up. This is therefore a section in which no coating 6 is arranged.

Die vorliegende Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt. Abwandlungen im Rahmen der Patentansprüche sind möglich.The present invention is not limited to the exemplary embodiments shown and described. Modifications within the scope of the claims are possible.

BezugszeichenlisteReference list

11
DrehtellerTurntable
22nd
GrundkörperBasic body
33rd
BandkanalBand channel
44th
Öffnungopening
55
Abdeckungcover
66
BeschichtungCoating
77
UntergrundmaterialSubstrate material
88th
BasisschichtBase layer
99
StrukturschichtStructural layer
1010th
DeckschichtTop layer
1111
ErhebungenSurveys
1212th
NutGroove

Claims (10)

  1. Rotary plate of a spinning machine, in particular a drawframe or a carding machine, for depositing a sliver in a can, with a base body (2) and a sliver duct (3) arranged in the base body (2), wherein upon the intended use of the rotary plate (1), the side of the rotary plate (1) turned towards the can features, at least partially, a coating (6), wherein the coating (6) is arranged on a cover (5), wherein the cover (5) is attached to the side of the base body (2) turned towards the can and wherein the cover (5) is rolled into a groove (12) on the base body (2) by means of an edge projecting beyond the base body (2). characterized in that, the coating (6) features a spatial configuration made of spherical, irregular elevations (11) and that the coating (6) is distanced from the edge on which the cover (5) is rolled in.
  2. Rotary plate according to the preceding claim, characterized in that the cover (5) is adhered and/or screwed to the base body (2).
  3. Rotary plate according to one or more of the preceding claims, characterized in that the coating (6) is formed from at least one base layer (8), structure layer (9) and/or cover layer (10).
  4. Rotary plate according to one or more of the preceding claims, characterized in that the coating (6) is formed from chromium and/or a chromium alloy.
  5. Rotary plate according to one or more of the preceding claims, characterized in that the elevations (11) feature an extension in the range from 0.1 µm to 10 µm, in particular 0.6 µm to 4 µm.
  6. Method for producing a rotary plate of a spinning machine, in particular a drawframe or a carding machine, for depositing a sliver in a can, with a base body (2) and a sliver duct (3) arranged in the base body (2), wherein upon the intended use of the rotary plate (1), on the side of the rotary plate (1) turned towards the can, at least partially, a coating (6) is applied, wherein the coating (6) is arranged on a cover (5), wherein the cover (5) is attached to the side of the base body (2) turned towards the can and wherein the cover (5) is rolled into a groove (12) on the base body (2) by means of an edge projecting beyond the base body (2), characterized in that the coating (6) is applied with a spatial configuration made of spherical, irregular elevations (11) and the coating (6) is formed in a manner distanced from the edge on which the cover (5) is rolled in.
  7. Method for producing a rotary plate according to the preceding claim, characterized in that the cover (5) is adhered and/or screwed to the base body (2).
  8. Method for producing a rotary plate according to one or more of the preceding claims, characterized in that the coating (6) is formed in sections on the cover (5).
  9. Method for producing a rotary plate according to one or more of the preceding claims, characterized in that the coating (6) is formed from at least one base layer (8), structure layer (9) and/or cover layer (10).
  10. Method for producing a rotary plate according to one or more of the preceding claims, characterized in that the coating (6) is formed from chromium and/or a chromium alloy.
EP15767438.3A 2014-09-10 2015-09-02 Coating for a rotating plate Active EP3191390B1 (en)

Applications Claiming Priority (2)

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DE102014113000.6A DE102014113000A1 (en) 2014-09-10 2014-09-10 Coating for a turntable
PCT/EP2015/070017 WO2016037913A1 (en) 2014-09-10 2015-09-02 Coating for a rotating plate

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EP3191390A1 EP3191390A1 (en) 2017-07-19
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US (1) US20170253458A1 (en)
EP (1) EP3191390B1 (en)
CN (2) CN106536391A (en)
BR (1) BR112017001117B1 (en)
DE (1) DE102014113000A1 (en)
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WO (1) WO2016037913A1 (en)

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DE102017110358A1 (en) * 2017-05-12 2018-11-15 Maschinenfabrik Rieter Ag Thread contacting component of a cheese producing textile machine

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JPS53126332A (en) * 1977-04-05 1978-11-04 Teijin Ltd Method of and device for forming coil of yarn
DE3810460A1 (en) * 1988-03-26 1989-10-12 Zinser Textilmaschinen Gmbh TURNTABLE FOR A LINE
DE4143345B4 (en) * 1991-12-04 2007-03-22 Rieter Ingolstadt Spinnereimaschinenbau Ag Turntable of a spinning preparation machine
KR960014815B1 (en) * 1994-11-16 1996-10-21 제일모직 주식회사 Method for preparation of high bulky wool yarn
DE19725780A1 (en) * 1997-06-18 1998-12-24 Metallgesellschaft Ag Applying plastic to metallic parts
DE19828545C1 (en) * 1998-06-26 1999-08-12 Cromotec Oberflaechentechnik G Galvanic bath for forming a hard chromium layer on machine parts
DE10334758B4 (en) 2002-08-19 2013-12-05 Rieter Ingolstadt Gmbh Turntable of a spinning machine and spinning machine
DE102004002851A1 (en) * 2004-01-19 2005-08-11 Maschinenfabrik Rieter Ag Fleece guiding device of a combing machine
DE102004034408A1 (en) * 2004-07-16 2006-02-02 Rieter Ingolstadt Spinnereimaschinenbau Ag Turntable for a sliver storage device
EP1992239A1 (en) * 2007-05-16 2008-11-19 House of Oliver Twist A/S An apparatus and a system for twisting a string of wrapped and spun tobacco leaves
AT507785B1 (en) * 2009-08-04 2010-08-15 Univ Wien Tech METHOD FOR PRODUCING STRUCTURED CHROMIUM LAYERS
DE102011005709A1 (en) * 2011-03-17 2012-09-20 Rieter Ingolstadt Gmbh Textile machine and method for its operation

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CN115637514A (en) 2023-01-24
EP3191390A1 (en) 2017-07-19
BR112017001117A2 (en) 2018-03-13
WO2016037913A1 (en) 2016-03-17
BR112017001117B1 (en) 2022-03-22
TWI622680B (en) 2018-05-01
TW201610249A (en) 2016-03-16
US20170253458A1 (en) 2017-09-07
CN106536391A (en) 2017-03-22
DE102014113000A1 (en) 2016-03-10

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