EP3631059B1 - Drum for a carding machine - Google Patents
Drum for a carding machine Download PDFInfo
- Publication number
- EP3631059B1 EP3631059B1 EP18729205.7A EP18729205A EP3631059B1 EP 3631059 B1 EP3631059 B1 EP 3631059B1 EP 18729205 A EP18729205 A EP 18729205A EP 3631059 B1 EP3631059 B1 EP 3631059B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- wall thickness
- spokes
- carding machine
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009960 carding Methods 0.000 title claims description 25
- 230000009467 reduction Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 241001417494 Sciaenidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
- D01G15/16—Main cylinders; Breasts
Definitions
- the invention relates to a drum for a card with a thick, cylindrical drum shell, which is connected in the interior to at least two spokes running in the radial direction, which are arranged at a distance from one another as seen in the axial direction of the drum.
- the carding gap set in the idle state can change in the operating state, which can lead to carding deterioration due to loss of carding surface as well as collisions of the clothings and thus damage to the clothings.
- the drum of the card consists at least partially of steel or aluminum, which is covered with a bandage of carbon fiber reinforced plastic.
- this is intended to influence the thermal expansion and, on the other hand, to reduce the mass with regard to the centrifugal forces that occur.
- This embodiment is also relatively complex and expensive to manufacture.
- the EP 0 214 438 A2 discloses an embodiment of a drum for a card which is internally divided into cells by radial support elements connected to the mantle of the drum.
- the SU 874 778 A1 discloses a reduced wall thickness of the drum shell in the area of the spokes, but ribs are provided inside the drum to which the spokes are attached. Additional rib-like reinforcements are provided between the spokes in the inner area of the drum casing.
- the GB 762 453 A discloses the attempt to reduce the deformation of the drum shell by a costly reinforcement of the width of at least one of the spokes.
- the U.S. 5,920,961A discloses a drum which is internally provided with longitudinal ribs in the direction of the drum axis.
- a disadvantage of these known designs of drums of the card is that an improvement in the dimensional stability or dimensional stability of the drum can only be achieved at the expense of high material costs or a complex construction.
- a drum for a card is proposed with a thick, cylindrical drum shell, which is connected in the interior with at least two spokes running in the radial direction, which are arranged at a distance from one another as seen in the axial direction of the drum, the Wall thickness of the drum shell in the area of the connection to the respective spoke is greater than the wall thickness outside of this connection area, and the wall thickness of the drum shell - viewed in the axial direction of the drum - at least in the area between the spokes - starting from the connection area of the respective spoke - continuously reduced to a minimum wall thickness, the reduction in the wall thickness of the drum shell being continuous or curved.
- the wall thickness is reduced at an angle of 0.5 to 2.0 degrees, preferably 1.2 degrees.
- the strength of the drum wall is also increased in the area between the spokes, which means that the drum wall is not deformed due to the centrifugal forces that occur in it Area is selectively distributed to allow an even centrifugal expansion.
- the curve be made dependent on the local stresses, the shape of this curve containing a constant value of the stresses caused by the centrifugal force.
- the shape of this curve containing a constant value of the stresses caused by the centrifugal force.
- the greater dimension (d1) of the wall thickness of the drum shell in the connection area with the respective spoke is between 5.0 and 25.0 mm.
- the minimum wall thickness (d2) of the drum casing (M) is between 2.0 and 15.0 mm.
- the wall thicknesses of the drum are thus dimensioned sufficiently to enable high speeds of the card drum without irregularities occurring in the carding gap due to increased centrifugal forces.
- the minimum wall thickness is preferably 12.5 mm and the wall thickness in the connection area is 22.5 mm.
- FIG. 1 shows a card 1 with a feed chute 2, via which the fibrous material is fed to a feed roller 3 in the form of a fiber web.
- the fiber material is delivered from the feed roller 3 to a licker-in 4, which transfers the fiber material to a carding drum 5 (called “drum” for short) of the card 1.
- the fiber material entrained by the drum 5 reaches the area of a main carding zone 7, which is formed in cooperation with a revolving flat unit 6 arranged circumferentially above the drum 5, as a result of the rotary movement of the drum 5 about its axis (shaft W), represented by an arrow.
- the direction of rotation of the revolving flat unit 6 is indicated by an arrow.
- the revolving flat unit 6 is provided with circulating flat rods D, shown schematically, which are equipped with clothings, not shown.
- the carded fiber material reaches the area of a rotatably mounted doffer 8, which removes the material removed from the drum 5 Fibrous material is transferred to a rotatably mounted doffing roller 9 .
- the doffer roller 9 conveys the fibrous material removed from the doffer 8 via guide devices (not shown) to a downstream pair of press rollers 10, which delivers the fibrous material to a fleece funnel 11 via additional guide means (e.g. a cross conveyor belt) that are not shown.
- the fiber material formed in the fleece funnel 11 (in the form of a sliver) is calendered by a subsequent pair of calender rollers 12 and transferred to a sliver coiler (not shown).
- Fig.2 is a sectional view AA of the drum 5 Fig.1 shown.
- the drum 5 is equipped on its outer peripheral surface U1 with a set G, which in the Fig.2 is indicated schematically.
- the drum 5 is rotatably mounted in a machine frame of the card via a shaft W and via the bearings L1, L2.
- the shaft W is connected to a card drive, which is not shown in detail.
- the already known drum 5 shown here has a cylindrical drum shell M with a constant wall thickness a.
- the drum jacket M is supported in its interior IR by spokes S1, S2 (also called drum base) arranged at an axial distance b from one another on the shaft W and is connected to it in a rotationally fixed manner.
- the spokes S1, S2 are attached to the inner peripheral surface U2 of the drum shell M in a peripheral connection area V1, or V2.
- the attachment can be done by welds (schematically indicated), by a press fit or in some other way. It is also possible to form the spokes S1, S2 in one piece with the drum casing (eg by a casting process).
- Fig.3 the longitudinal section of a drum 5 is shown, which shows an exemplary embodiment of a drum casing M designed according to the invention with spokes S3, S4 arranged in its interior IR.
- the drum jacket M has a wall thickness d1 in the area of the connection areas V1, V2 with the respective spokes S3, S4. Starting from the respective connection area V1, V2--seen in the axial direction of the drum 5--the wall thickness of the drum jacket M on both sides of the connection areas V1, V2 is continuously reduced down to a minimum wall thickness d2.
- the inner peripheral surface U2 runs at an angle c1 or c2, starting from the inner surface IF of the respective connection area V1, V2.
- the angles c1 and c2 can be different or have the same value.
- a section T of the drum casing M with a length s is provided with a constant wall thickness d2.
- spokes S3, S4 are arranged at an axial distance b from one another and are supported on a shaft W, to which they are connected in a rotationally fixed manner.
- the shaft W is rotatably mounted in a machine frame via the bearings L1, L2 and is connected to a drive (not shown).
- the enlarged view of the Fig.4 shows a section of the drum Fig.3 ,
- the reduction in wall thickness d1 in the respective connection region V1 runs in the form of a curve P down to a minimum wall thickness d2.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
Die Erfindung bezieht sich auf eine Trommel für eine Karde mit einem, eine Wandstärke aufweisenden, zylindrischen Trommelmantel, welcher im Innenraum mit wenigstens zwei, in radialer Richtung verlaufenden Speichen verbunden ist, welche in axialer Richtung der Trommel gesehen, in einem Abstand zueinander angeordnet sind.The invention relates to a drum for a card with a thick, cylindrical drum shell, which is connected in the interior to at least two spokes running in the radial direction, which are arranged at a distance from one another as seen in the axial direction of the drum.
Um bei einer Karde ein möglichst effiziente Kardierwirkung zu erzielen, ist es notwendig den Kardierspalt insbesondere in der Hauptkardierzone zwischen der Garnitur des Deckels und der Garnitur der Kardentrommel (auch Tambour genannt) möglichst klein zu halten. Die Garnitur der Kardentrommel wird durch spezielle Aufziehverfahren und Befestigungsverfahren auf dem Aussenumfang der Trommel der Karde aufgebracht.In order to achieve the most efficient carding effect possible with a card, it is necessary to keep the carding gap as small as possible, particularly in the main carding zone between the clothing of the flat and the clothing of the card drum (also called tambour). The clothing of the card drum is attached to the outer circumference of the card drum by special mounting and fastening methods.
Zur Erzielung von hohen Produktionsmengen wurden die Drehzahlen der Kardentrommeln in den letzten Jahren immer mehr erhöht. D.h. inzwischen werden Kardentrommeln mit Drehzahlen von über 600 U/min eingesetzt.In order to achieve high production quantities, the speeds of the card drums have been increased more and more in recent years. This means that card drums with speeds of over 600 rpm are now being used.
Durch die Erhöhung der Drehzahlen werden die Zentrifugalkräfte an der Trommel der Karde (Kardiertrommel) erhöht, welche ungleichmässige elastische Verformungen im Durchmesserbereich der Trommel der Karde herbeiführen bedingt durch die auftretenden ungleichmässigen Spannungen.By increasing the speed, the centrifugal forces on the drum of the card (carding drum) are increased, which bring about uneven elastic deformations in the diameter area of the drum of the card due to the uneven tensions that occur.
Durch die auftretenden beschriebenen ungleichmässigen elastischen Verformungen im Trommelbereich kann sich der im Ruhezustand eingestellte Kardierspalt im Betriebszustand verändern was zu Verschlechterungen der Kardierung durch Verlust an Kardierfläche wie auch zu Kollisionen der Garnituren und somit zu Beschädigungen der Garnituren führen kann.Due to the described non-uniform elastic deformations occurring in the drum area, the carding gap set in the idle state can change in the operating state, which can lead to carding deterioration due to loss of carding surface as well as collisions of the clothings and thus damage to the clothings.
Um dem entgegenzuwirken wurden in der Patentliteratur bereits schon verschiedene Lösungen vorgeschlagen. In der
Sie ist jedoch sehr aufwändig und teuer und erfordert ebenfalls eine zeitintensive Montagearbeit.However, it is very complex and expensive and also requires time-consuming assembly work.
Des Weiteren wird in der
Die
Es ist somit Aufgabe der Erfindung eine Vorrichtung vorzuschlagen, welche die Nachteile des bekannten Standes der Technik beseitigt und auch grössere Trommeldrehzahlen bei der Karde ermöglicht ohne dass es zu unerwünschten ungleichmässigen Verformungen im Bereich des Trommelumfanges der Kardentrommel kommt.It is therefore the object of the invention to propose a device which eliminates the disadvantages of the known prior art and also enables higher drum speeds for the card without undesired uneven deformations occurring in the region of the drum circumference of the card drum.
Die Aufgabe wird gelöst durch eine Trommel mit den Merkmalen des unabhängigen Anspruchs. Dabei wird eine Trommel für eine Karde vorgeschlagen mit einem, eine Wandstärke aufweisenden, zylindrischen Trommelmantel, welcher im Innenraum mit wenigstens zwei, in radialer Richtung verlaufenden Speichen verbunden ist, welche in axialer Richtung der Trommel gesehen, in einem Abstand zueinander angeordnet sind, wobei die Wandstärke des Trommelmantels im Bereich der Verbindung zur jeweiligen Speiche ein grösseres Mass aufweist als die Wandstärke ausserhalb dieses Verbindungsbereiches, und wobei sich die Wandstärke des Trommelmantels - in axialer Richtung der Trommel gesehen - wenigstens im Bereich zwischen den Speichen - ausgehend vom Verbindungsbereich der jeweiligen Speiche - kontinuierlich bis auf eine Mindestwandstärke verringert, wobei die Verringerung der Wandstärke des Trommelmantels kontinuierlich oder kurvenförmig verläuft.The object is solved by a drum having the features of the independent claim. A drum for a card is proposed with a thick, cylindrical drum shell, which is connected in the interior with at least two spokes running in the radial direction, which are arranged at a distance from one another as seen in the axial direction of the drum, the Wall thickness of the drum shell in the area of the connection to the respective spoke is greater than the wall thickness outside of this connection area, and the wall thickness of the drum shell - viewed in the axial direction of the drum - at least in the area between the spokes - starting from the connection area of the respective spoke - continuously reduced to a minimum wall thickness, the reduction in the wall thickness of the drum shell being continuous or curved.
Dadurch wird die zentrifugale Ausdehnung über den gesamten Längsschnitt ausgeglichen. Die Verringerung der Wandstärke verläuft dabei in einem Winkel von 0.5 bis 2.0 Winkelgraden, bevorzugterweise 1.2 Winkelgraden.This compensates for the centrifugal expansion over the entire longitudinal section. The wall thickness is reduced at an angle of 0.5 to 2.0 degrees, preferably 1.2 degrees.
Damit wird durch eine einfache und kostengünstige Ausführung erreicht, dass die Festigkeit der Trommelwandung auch im Bereich zwischen den Speichen erhöht wird, womit eine Verformung der Trommelwand aufgrund der auftretenden Fliehkräfte in diesem Bereich gezielt verteilt wird, um eine gleichmässige zentrifugale Ausdehnung zu ermöglichen.With a simple and inexpensive design, the strength of the drum wall is also increased in the area between the spokes, which means that the drum wall is not deformed due to the centrifugal forces that occur in it Area is selectively distributed to allow an even centrifugal expansion.
Es wird vorteilhafterweise vorgeschlagen den kurvenförmigen Verlauf von den örtlichen Spannungen abhängig zu gestalten wobei der Verlauf dieser Kurve einen konstanten Wert der von den durch die Zentrifugalkraft verursachten Spannungen beinhaltet. In vereinfachter Form kann dabei von einer parabelförmigen Kurve gesprochen werden.Advantageously, it is proposed that the curve be made dependent on the local stresses, the shape of this curve containing a constant value of the stresses caused by the centrifugal force. In simplified form, one can speak of a parabolic curve.
Es wird weiter vorgeschlagen, dass das grössere Mass (d1) der Wandstärke des Trommelmantels im Verbindungsbereich mit der jeweiligen Speiche zwischen 5.0 und 25.0 mm beträgt. Vorteilhafter Weise wird weiter vorgeschlagen, dass die Mindestwandstärke (d2) des Trommelmantels (M) zwischen 2.0 und 15.0 mm beträgt. Damit sind die Wandstärken der Trommel ausreichend dimensioniert, um auch hohe Drehzahlen der Kardentrommel zu ermöglichen, ohne dass es zu Unregelmässigkeiten im Kardierspalt hinsichtlich erhöhter Zentrifugalkräfte kommt. Bei einem Trommeldurchmesser von über 1.0 m und einer axialen Länge von über 1.0 m ist die Mindestwandstärke bevorzugterweise 12.5 mm und die Wandstärke im Verbindungsbereich 22.5 mm.It is further proposed that the greater dimension (d1) of the wall thickness of the drum shell in the connection area with the respective spoke is between 5.0 and 25.0 mm. Advantageously, it is further proposed that the minimum wall thickness (d2) of the drum casing (M) is between 2.0 and 15.0 mm. The wall thicknesses of the drum are thus dimensioned sufficiently to enable high speeds of the card drum without irregularities occurring in the carding gap due to increased centrifugal forces. With a drum diameter of more than 1.0 m and an axial length of more than 1.0 m, the minimum wall thickness is preferably 12.5 mm and the wall thickness in the connection area is 22.5 mm.
Als weitere Ausführung der Erfindung wird vorgeschlagen, dass - in axialer Richtung der Trommel gesehen - sich zwischen den Speichen wenigstens ein Teilabschnitt des Trommelmantels die Mindestwandstärke aufweist, wobei die Länge des Teilabschnittes zwischen 5 und 80 % des Abstandes zwischen dem Verbindungsbereich zweier benachbarter Speichen beträgt. Zur Erzielung einer kompakten und stabilen Bauweise der Trommel wird weiter vorgeschlagen, dass - in axialer Richtung der Trommel gesehen - der Abstand zwischen dem Verbindungsbereich zweier benachbarter Speichen zwischen 400 und 1300 mm beträgt.As a further embodiment of the invention, it is proposed that - seen in the axial direction of the drum - at least one section of the drum shell has the minimum wall thickness between the spokes, with the length of the section between 5 and 80% of the distance between the connecting area of two adjacent spokes is. To achieve a compact and stable construction of the drum, it is further proposed that—seen in the axial direction of the drum—the distance between the connecting area of two adjacent spokes is between 400 and 1300 mm.
Es wird die Verwendung der erfindungsgemässen Trommel in einer Karde vorgeschlagen.The use of the drum according to the invention in a card is proposed.
Weitere Vorteile der Erfindung werden anhand nachfolgender Ausführungsbeispiele näher aufgezeigt und beschrieben:
- Fig.1
- eine schematische Seitenansicht einer Karde
- Fig.2
- eine schematische Schnittdarstellung A-A einer bekannten Kardiertrommel nach
Fig.1 - Fig. 3
- eine schematische Schnittdarstellung einer Kardiertrommel nach
Fig.2 mit einer erfindungsgemäss ausgebildeten Ausführung - Fig.4
- eine weitere erfindungsgemässe Ausführung der Kardiertrommel nach
Fig.3 in einer vergrösserten Teilansicht
- Fig.1
- a schematic side view of a card
- Fig.2
- a schematic sectional view AA of a known carding drum
Fig.1 - 3
- a schematic sectional view of a carding drum
Fig.2 with an embodiment designed according to the invention - Fig.4
- another embodiment of the carding drum according to the invention
Fig.3 in an enlarged partial view
Im Anschluss an die Hauptkardierzone 7 gelangt das kardierte Fasergut in den Bereich eines drehbar gelagerten Abnehmers 8, welcher das von der Trommel 5 abgenommene Fasergut an eine drehbar gelagerte Abnehmerwalze 9 überführt. Die Abnehmerwalze 9 fördert das, von dem Abnehmer 8 abgenommene Fasergut über nicht näher gezeigte Führungseinrichtungen an ein nachfolgendes Presswalzenpaar 10, welches das Fasergut an einen Vliestrichter 11 über weitere, nicht gezeigte Führungsmittel (z. B. ein Querförderband) abgibt. Das im Vliestrichter 11 gebildete Fasergut (in Form eines Faserbandes) wird durch ein nachfolgendes Kalanderwalzenpaar 12 kalandriert und an eine nicht gezeigte Bandablage überführt.Following the main carding zone 7, the carded fiber material reaches the area of a rotatably mounted
In
In
Wie bereits im Ausführungsbeispiel der
Durch die im Beispiel der
Die vergrösserte Darstellung der
Es ist jedoch auch eine andere Ausführung im Rahmen der Erfindung möglich, wobei im Bereich des Trommelmantels M zwischen den Speichen S3, S4, ausgehend vom jeweiligen Verbindungsbereich V1, V2, sich die Wandstärke der Trommelmantels M in Form eine Parabel (
Es sind noch weitere Ausführungen möglich, wobei z. B. kein Mittelabschnitt T mit gleichbleibendem Wandquerschnitt vorgesehen ist. D.h. die Verjüngung der Wandstärke des Trommelmantels M würde in diesem Fall, jeweils ausgehend von den Verbindungsbereichen V1, V2, bis zur Mitte der Trommel führen.There are other versions possible, where z. B. no central section T is provided with a constant wall cross-section. In other words, in this case, the tapering of the wall thickness of the drum jacket M would lead to the middle of the drum, starting from the connection areas V1, V2.
- 11
- Kardecard
- 22
- Zuführschachtfeed chute
- 33
- Speisewalzefood roller
- 44
- Vorreisserlicker
- 55
- Kardiertrommel (Trommel)carding drum (drum)
- 66
- Wanderdeckelaggregatrevolving flat unit
- 77
- Hauptkardierzonemain carding zone
- 88th
- Abnehmercustomer
- 99
- Abnehmerwalzedoffer roller
- 1010
- Presswalzenpaarpair of press rollers
- 1111
- Vliestrichterfleece funnel
- 1212
- Kalanderwalzenpaarpair of calender rolls
- DD
- Deckelstabflat bar
- GG
- Garniturset
- IFIF
- InnenflächeInner surface
- IRIR
- Innenrauminner space
- MM
- Trommelmanteldrum shell
- PP
- Parabelparabola
- S1 - S4S1 - S4
- Speichespoke
- TT
- Teilabschnittsection
- U1U1
- Äussere UmfangsflächeOuter perimeter
- U2U2
- Innere Umfangsflächeinner peripheral surface
- V1, V2V1, V2
- Verbindungsbereicheconnection areas
- WW
- WelleWave
- aa
- Manteldickejacket thickness
- bb
- Abstand SpeichenSpacing spokes
- c1, c2c1, c2
- Winkelangle
- d1d1
- WandstärkeWall thickness
- d2d2
- Mindestwandstärkeminimum wall thickness
- ss
- Länge TeilabschnittLength section
Claims (8)
- A drum (5) for a carding machine (1), comprising a cylindrical drum shell (M) that has a wall thickness (a, d1, d2) and is connected in the interior space (IR) to at least two spokes (S1, S2, S3, S4) that run in a radial direction and are arranged at a distance (b) from one another, as seen in the axial direction of the drum (5), in which the wall thickness of the drum shell (M) is of a greater dimension (d1) in the area of the connection (V1, V2) from the respective spoke (S3, S4) than the wall thickness outside of this connecting area (V1, V2), in that the wall thickness (d1) of the drum shell - as seen in the axial direction of the drum - decreases to a minimum wall thickness (d2) - at least in the area between the spokes (S3, S4) - starting from the connecting area of the respective spoke, characterized in that the reduction in wall thickness of the drum shell (M) is continuous or in the form of a curve.
- The drum (5) for a carding machine according to claim 1, characterized in that the wall thickness of the drum shell (M) - as seen in the axial direction of the drum - decreases continuously to a minimum wall thickness (d2) - on both sides of the respective connecting area (V1, V2) - starting from the respective spoke (S3, S4).
- The drum (5) for a carding machine (1) according to claim 4, characterized in that the reduction in wall thickness of the drum shell (M) is in the form of a parabola (P).
- The drum (5) for a carding machine (1) according to any one of the preceding claims, characterized in that the greater dimension (d1) of the wall thickness of the drum shell (M) in the connecting area (V1, V2) with the respective spoke (S3, S4) is between 5.0 mm and 25.0 mm.
- The drum (5) for a carding machine (1) according to any one of the preceding claims, characterized in that the minimum wall thickness (d2) of the drum shell (M) is between 2.0 mm and 15.0 mm.
- The drum (5) for a carding machine (1) according to any one of the preceding claims, characterized in that at least one partial section (T) of the drum shell (M) has a minimum wall thickness (d2) - as seen in the axial direction of the drum (5) - between the spokes (S1, S2), such that the length (s) of the partial section (T) amounts to between 5% and 80% of the distance (b) between the connecting area (V1, V2) of two connecting spokes (S3, S4).
- The drum (5) for a carding machine (1) according to any one of the preceding claims, characterized in that the distance (b) between the connecting area (V1, V2) of two neighboring spokes (S3, S4) is between 400 mm and 1300 mm - as seen in the axial direction of the drum.
- The carding machine (1) having a drum (5) according to any one of the preceding claims.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00675/17A CH713801A1 (en) | 2017-05-24 | 2017-05-24 | Drum for a card. |
PCT/IB2018/053408 WO2018215884A1 (en) | 2017-05-24 | 2018-05-16 | Drum for a carding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3631059A1 EP3631059A1 (en) | 2020-04-08 |
EP3631059B1 true EP3631059B1 (en) | 2022-12-21 |
Family
ID=62528790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18729205.7A Active EP3631059B1 (en) | 2017-05-24 | 2018-05-16 | Drum for a carding machine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3631059B1 (en) |
CN (1) | CN110678589B (en) |
CH (1) | CH713801A1 (en) |
WO (1) | WO2018215884A1 (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB762453A (en) * | 1952-04-23 | 1956-11-28 | Gilbert Edward Fisher | A new or improved construction of metal cylinder, drum, roller or the like |
GB762543A (en) * | 1953-09-03 | 1956-11-28 | Gen Electric | Improvements relating to the production of grain oriented silicon steel |
DE1510199A1 (en) * | 1966-10-08 | 1970-07-23 | Bovensiepen Dipl Ing Hans Frie | Card |
SU874778A1 (en) * | 1979-06-11 | 1981-10-23 | Ленинградский ордена Трудового Красного Знамени институт текстильной и легкой промышленности им. С.М.Кирова | Card drum |
JPS6034031Y2 (en) * | 1982-05-12 | 1985-10-09 | 豊和工業株式会社 | Fixing device for combing cylinder in comber |
DE3531850A1 (en) * | 1985-09-06 | 1987-03-19 | Schubert & Salzer Maschinen | DRUM FOR CARDING MACHINES |
US5265750A (en) | 1990-03-05 | 1993-11-30 | Hollingsworth U.K. Limited | Lightweight cylinder construction |
US5920961A (en) * | 1997-11-10 | 1999-07-13 | John D. Hollingsworth On Wheels, Inc. | Ventilating carding roll |
EP1106717A1 (en) * | 1999-12-03 | 2001-06-13 | Maschinenfabrik Rieter Ag | Cylinder for carding machines |
DE102004035770A1 (en) * | 2004-07-23 | 2006-03-16 | Trützschler GmbH & Co KG | Roller for fiber processing machine, z. B. spinning preparation machine such as cards, cleaners o. The like., Flockenspeiser, carding, nonwoven imaging machine o. The like. |
DE102004035771A1 (en) | 2004-07-23 | 2006-03-16 | Trützschler GmbH & Co KG | Device on a card with a drum, the drum opposite garnished and / or non-garnished elements and fixed side panels |
DE102005029767A1 (en) * | 2005-06-24 | 2007-01-04 | TRüTZSCHLER GMBH & CO. KG | Device on a spinning preparation machine, in particular carding machine, carding machine, cleaner o. The like., With a cooling system |
-
2017
- 2017-05-24 CH CH00675/17A patent/CH713801A1/en not_active Application Discontinuation
-
2018
- 2018-05-16 EP EP18729205.7A patent/EP3631059B1/en active Active
- 2018-05-16 CN CN201880034419.5A patent/CN110678589B/en active Active
- 2018-05-16 WO PCT/IB2018/053408 patent/WO2018215884A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN110678589A (en) | 2020-01-10 |
CN110678589B (en) | 2022-04-19 |
WO2018215884A1 (en) | 2018-11-29 |
EP3631059A1 (en) | 2020-04-08 |
CH713801A1 (en) | 2018-11-30 |
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