EP1576215A1 - All-steel card clothing for rollers and/or drums of carders or carding machines - Google Patents

All-steel card clothing for rollers and/or drums of carders or carding machines

Info

Publication number
EP1576215A1
EP1576215A1 EP03811735A EP03811735A EP1576215A1 EP 1576215 A1 EP1576215 A1 EP 1576215A1 EP 03811735 A EP03811735 A EP 03811735A EP 03811735 A EP03811735 A EP 03811735A EP 1576215 A1 EP1576215 A1 EP 1576215A1
Authority
EP
European Patent Office
Prior art keywords
tooth
rollers
angle
steel
length
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.)
Granted
Application number
EP03811735A
Other languages
German (de)
French (fr)
Other versions
EP1576215B1 (en
Inventor
Bernhard Bocht
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.)
Truetzschler Card Clothing GmbH
Original Assignee
Truetzschler Card Clothing GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Truetzschler Card Clothing GmbH filed Critical Truetzschler Card Clothing GmbH
Publication of EP1576215A1 publication Critical patent/EP1576215A1/en
Application granted granted Critical
Publication of EP1576215B1 publication Critical patent/EP1576215B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/88—Card clothing; Manufacture thereof not otherwise provided for formed from metal sheets or strips

Definitions

  • the invention relates to all-steel fittings for rollers and / or drums of cleaners, cards or carding machines, which rollers or drums have a higher peripheral speed than upstream rollers in the fiber flow direction, the all-steel clothing having teeth with a positive breast angle of> 0 °.
  • the rolls concerned here are, for example, licker-in rolls, turning rolls or transfer rolls on cards or cards, and the drum of a card or card. These rollers or drums take over fiber raw material actively with the front edge of the breast angle of the teeth of the corresponding all-steel clothing.
  • the object of the invention is to provide an all-steel fitting of the type mentioned at the outset, which eliminates the disadvantages observed in the prior art while maintaining good transfer properties.
  • the teeth have a head angle which is> 85 °, preferably> 87 °, the length of the head surface extending at this angle from the tooth tip to the back of the tooth being at least 15%. corresponds to the length of the tooth pitch.
  • the head angle of the tooth is 90 °. This means that even after grinding the clothing, the same conditions are present on all teeth, which in turn leads to an improvement in the carding quality.
  • the length of the head surface corresponds to at least 25% of the tooth pitch.
  • the length of the head surface corresponds to at least three times, preferably five times its width.
  • the length of the head surface is greater than or equal to half the tooth height, measured from the tooth base to the tooth tip. This creates a relatively low set, which surprisingly leads to good carding ratios. It is particularly preferred if the length of the head surface corresponds to the tooth height.
  • the tooth back adjoining the top surface encloses an angle between 20 and 30 °, preferably 25 °, with the following tooth face.
  • This opening angle between the back of the tooth and the tooth face tends to be smaller than in the prior art sets; however, it is sufficient to ensure problem-free transfer of the fibers from the upstream roller.
  • the all-steel clothing described above is particularly suitable for reels of cotton cards, so-called high-performance cards, with a drum circumferential speed of more than 1500 m / min as well as an all-steel drum clothing with a total height of less than 3 mm and a foot width of less than 0.7 mm. Protection is therefore claimed separately for such a cotton card equipped with an all-steel clothing according to the invention. Exemplary embodiments of the invention are explained in more detail below with reference to a drawing.
  • FIG. 1 is a schematic representation of a card in a side view
  • Fig. 2 shows the tooth geometry of an all-steel fitting.
  • FIG. 3 shows a sectional view of the illustration from FIG. 2 along the line III-III
  • Fig. 4 shows the geometry of an all-steel fitting.
  • FIG. 5 shows a sectional view along the line V-V from FIG. 4.
  • Fig. 1 shows a schematic representation of a card with a drum 1, feed rollers 2, a licker-in 3 and turning rollers 4. The circumferential direction of rotation of the rollers is shown in FIG. 1 by arrows.
  • the clothing described in the following relates to such rollers or drums that actively take over fibers from the upstream rollers.
  • Examples are the licker-in 3, the turning rollers 4 and in particular the drum 1 in the illustration shown in FIG. 1.
  • Fig. 2 now shows in sections a saw tooth wire of an all-steel set, as is provided for the drum shown in Fig. 1. It is a sawtooth wire with a total height of 2mm and a tooth pitch, measured from tooth tip 5 to the next 5 'of 1.7mm.
  • the breast angle ⁇ of the tooth face 6 measured in relation to the vertical is 40 ° in the exemplary embodiment shown here.
  • the tooth back 7 does not directly adjoin the tooth tip; rather, a head surface 8 is initially provided.
  • the angle of the head surface ⁇ again measured with respect to the vertical, is 87 ° in the exemplary embodiment shown in FIG. 2.
  • the length L of the head surface 8 is 0.5 mm, its width B (see FIG. 3) is 0.07 mm.
  • the tooth height H, measured from the tooth base to the tooth tip 5, is slightly less than 0.5 mm.
  • the angle y enclosed by the tooth face 6 and the tooth back 7 is 24 ° in the exemplary embodiment shown here.
  • the distance from the tooth tip 5 to the adjacent tooth tip 5 ' is only 1.5 mm.
  • the breast angle ⁇ is only 30 °.
  • the angle y enclosed between tooth face 6 and tooth back 7 is 25 ° in this exemplary embodiment.
  • the two exemplary embodiments do not differ fundamentally.
  • the sawtooth wire shown in Fig. 2 has a larger chest angle, which is fundamentally favorable for a more active fiber takeover.
  • What is decisive for both variants, however, is that with a relatively low tooth height, a long head surface is provided which is almost not inclined and which therefore gives the tooth tip and the entire set increased stability.
  • the tooth geometry does not change practically even after grinding the set, so that on the one hand practically the same conditions are present and on the other hand the carding quality does not change even after grinding the sets.
  • the sets are pulled up in a conventional manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Road Paving Machines (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

The present invention relates to an all-steel card clothing for rollers and/or cylinders of carding machines. Carding machines comprise rollers which are configured to actively take over raw fiber materials from rollers arranged upstream in work direction. Therefore, such card clothings have a relatively large front angle. The problem is that the stability of the card clothings suffers. According to the invention, the teeth have a head angle of >85° in order to solve this problem. The length of the head surface extending at said angle from the tooth tip to the tooth back corresponds to at least ¼ of the length of the tooth pitch. This achieves a considerably more stable card clothing while maintaining the high carding quality.

Description

GANZSTAHLGARNITUR FÜR WALZEN UND/ODER TROMMELN VON KARDEN ODER KREMPELN WHOLE STEEL SET FOR ROLLING AND / OR DRUMING CARD OR CARD
Die Erfindung bezieht sich auf Ganzstahlgarnituren für Walzen und/oder Trommeln von Reinigern, Karden oder Krempeln, welche Walzen oder Trommeln eine höhere Umfangsgeschwindigkeit als in Faserfließrichtung jeweils vorgelagerte Walzen aufweisen, wobei die Ganzstahlgarnitur Zähne mit einem positiven Brustwinkel von > 0° aufweist.The invention relates to all-steel fittings for rollers and / or drums of cleaners, cards or carding machines, which rollers or drums have a higher peripheral speed than upstream rollers in the fiber flow direction, the all-steel clothing having teeth with a positive breast angle of> 0 °.
Bei den hier betroffenen Walzen handelt es sich beispielsweise um Vorreißerwalzen, Wenderwalzen oder Übertragerwalzen an Karden oder Krempeln, sowie die Trommel einer Karde bzw. Krempel. Diese Walzen bzw. Trommeln übernehmen Faserrohstoff aktiv mit der Vorderkante des Brustwinkels der Zähne der entsprechenden Ganzstahlgarnitur.The rolls concerned here are, for example, licker-in rolls, turning rolls or transfer rolls on cards or cards, and the drum of a card or card. These rollers or drums take over fiber raw material actively with the front edge of the breast angle of the teeth of the corresponding all-steel clothing.
Das Problem bei diesen Garnituren ist, dass positive Brustwinkel benötigt werden, um eine gute Faserübernahme zu gewährleisten. Dadurch wird allerdings tendenziell die Zahnspitze schlanker, was diese Garnituren bei der Montage und auch beim Nachschärfen empfindlicher macht. Zudem können leichter Verunreinigungen oder Verschmutzungen im Faserrohstoff aufgespießt werden.The problem with these sets is that positive breast angles are needed to ensure good fiber take-up. However, this tends to make the tooth tip slimmer, which makes these sets more sensitive during assembly and also during re-sharpening. In addition, impurities or soiling can be impaled more easily in the fiber raw material.
Demzufolge liegt der Erfindung die Aufgabe zugrunde, eine Ganzstahlgarnitur der eingangs genannten Art zur Verfügung zu stellen, die unter Beibehaltung guter Übernahmeeigenschaften die im Stand der Technik zu beobachtenden Nachteile beseitigt.Accordingly, the object of the invention is to provide an all-steel fitting of the type mentioned at the outset, which eliminates the disadvantages observed in the prior art while maintaining good transfer properties.
Diese Aufgabe wird bei einer Ganzstahlgarnitur der eingangs genannten Art dadurch gelöst, dass die Zähne einen Kopfwinkel aufweisen, der > 85°, vorzugsweise > 87° ist, wobei die Länge der sich unter diesem Winkel von der Zahnspitze bis zum Zahnrücken erstreckenden Kopffläche mindestens 15% der Länge der Zahnteilung entspricht.This object is achieved in an all-steel set of the type mentioned at the outset in that the teeth have a head angle which is> 85 °, preferably> 87 °, the length of the head surface extending at this angle from the tooth tip to the back of the tooth being at least 15%. corresponds to the length of the tooth pitch.
Die sich aus dieser Zahnform ergebenden Vorteile sind, dass einerseits ein Zusetzen der Garnituren verhindert wird und dass die Garnitur zwar nach wie vor die für das Kardieren notwendige Agressivität oder Aktivität aufweist, gegenüber Verunreinigung aber stumpf wirkt. Ferner sind die Zähne der Ganzstahlgarnitur stabiler, weniger emp- findlich bei der Montage und beim Nachschärfen. Darüber hinaus wird bei verunreinigten Faserrohstoffen wie beispielsweise Baumwolle das Aufspießen von Fremdteilen verhindert. Dadurch muß die Garnitur weniger häufig gereinigt werden. Insgesamt hat sich gezeigt, dass neben den zu erwartenden Vorteilen aber auch die Kardierqua- lität besser wird.The advantages resulting from this tooth shape are that on the one hand clogging of the sets is prevented and that the set still has the aggressiveness or activity required for carding, but has a dull effect against contamination. In addition, the teeth of the all-steel set are more stable, less sensitive to assembly and resharpening. In addition, impurities are prevented from impaling on contaminated fiber raw materials such as cotton. This means that the clothing needs to be cleaned less frequently. Overall, it has been shown that in addition to the advantages to be expected, the carding quality is also improving.
Gemäß einer bevorzugten Ausführungsform beträgt der Kopfwinkel des Zahns 90°. Hierdurch ergibt sich, dass auch nach Überschleifen der Garnitur gleiche Verhältnisse an allen Zähnen vorliegen, was wiederum zu einer Verbesserung der Kardierqualität führt.According to a preferred embodiment, the head angle of the tooth is 90 °. This means that even after grinding the clothing, the same conditions are present on all teeth, which in turn leads to an improvement in the carding quality.
Besonders bevorzugt wird zudem, wenn die Länge der Kopffläche mindestens 25% der Zahnteilung entspricht.It is also particularly preferred if the length of the head surface corresponds to at least 25% of the tooth pitch.
Bevorzugt wird ferner, wenn die Länge der Kopffläche mindestens dem Dreifachen, vorzugsweise dem Fünffachen ihrer Breite entspricht. Schließlich hat sich als günstig herausgestellt, wenn die Länge der Kopffläche größer oder gleich der halben Zahnhöhe, gemessen vom Zahngrund bis zur Zahnspitze ist. Hierdurch entsteht eine relativ niedrige Garnitur, die überraschenderweise zu guten Kardierverhältnissen führt. Besonders bevorzugt wird, wenn die Länge der Kopffläche der Zahnhöhe entspricht.It is also preferred if the length of the head surface corresponds to at least three times, preferably five times its width. Finally, it has turned out to be favorable if the length of the head surface is greater than or equal to half the tooth height, measured from the tooth base to the tooth tip. This creates a relatively low set, which surprisingly leads to good carding ratios. It is particularly preferred if the length of the head surface corresponds to the tooth height.
Vorteilhaft ist schließlich auch, wenn der sich an die Kopffläche anschließende Zahnrücken mit der nachfolgenden Zahnbrust einen Winkel zwischen 20 und 30°, vorzugsweise 25° einschließt. Dieser Öffnungswinkel zwischen Zahnrücken und Zahnbrust ist tendenziell kleiner als bei den Garnituren des Standes der Technik; er reicht jedoch aus, um für eine problemlose Übernahme der Fasern von der in Arbeitsrichtung vorgelagerten Walze zu sorgen.Finally, it is also advantageous if the tooth back adjoining the top surface encloses an angle between 20 and 30 °, preferably 25 °, with the following tooth face. This opening angle between the back of the tooth and the tooth face tends to be smaller than in the prior art sets; however, it is sufficient to ensure problem-free transfer of the fibers from the upstream roller.
Ganz besonders eignet sich die zuvor beschriebene Ganzstahlgarnitur für Trommeln von Baumwollkarden, sog. Hochleistungskarden, mit einer Trommelumfangsgeschwindigkeit von mehr als 1500m/min sowie einer Trommelganzstahlgarnitur mit einer Gesamthöhe von weniger als 3mm und einer Fußbreite von weniger als 0,7mm. Für eine solche, mit einer erfindungsgemäßen Ganzstahlgarnitur bestückten Baumwollkarde wird daher gesondert Schutz beansprucht. Im folgenden werden Ausführungsbeispiele der Erfindung anhand einer Zeichnung näher erläutert.The all-steel clothing described above is particularly suitable for reels of cotton cards, so-called high-performance cards, with a drum circumferential speed of more than 1500 m / min as well as an all-steel drum clothing with a total height of less than 3 mm and a foot width of less than 0.7 mm. Protection is therefore claimed separately for such a cotton card equipped with an all-steel clothing according to the invention. Exemplary embodiments of the invention are explained in more detail below with reference to a drawing.
Es zeigen:Show it:
Fig. 1 in einer schematischen Darstellung eine Karde in einer Seitenansicht,1 is a schematic representation of a card in a side view,
Fig. 2 die Zahngeometrie einer Ganzstahlgarnitur gem. einer ersten Ausführungsform,Fig. 2 shows the tooth geometry of an all-steel fitting. a first embodiment,
Fig. 3 eine Schnittansicht der Darstellung aus Fig. 2 entlang der Linie lll-lll,3 shows a sectional view of the illustration from FIG. 2 along the line III-III,
Fig. 4 die Geometrie einer Ganzstahlgarnitur gem. einer weiteren Ausführungsform undFig. 4 shows the geometry of an all-steel fitting. a further embodiment and
Fig. 5 eine Schnittansicht entlang der Linie V-V aus Fig. 4.FIG. 5 shows a sectional view along the line V-V from FIG. 4.
Fig. 1 zeigt eine schematische Darstellung einer Krempel mit einer Trommel 1 , Speisewalzen 2, einem Vorreißer 3 und Wenderwalzen 4. Die Umfangsdrehhchtung der Walzen ist in der Fig. 1 jeweils durch Pfeile dargestellt.Fig. 1 shows a schematic representation of a card with a drum 1, feed rollers 2, a licker-in 3 and turning rollers 4. The circumferential direction of rotation of the rollers is shown in FIG. 1 by arrows.
Die im folgenden beschriebene Garnitur betrifft jeweils solche Walzen bzw. Trommeln, die Fasern von den in Arbeitsrichtung vorgelagerten Walzen aktiv übernehmen. Beispielhaft sind das bei der in Fig. 1 gezeigten Darstellung der Vorreißer 3, die Wenderwalzen 4 und insbesondere die Trommel 1.The clothing described in the following relates to such rollers or drums that actively take over fibers from the upstream rollers. Examples are the licker-in 3, the turning rollers 4 and in particular the drum 1 in the illustration shown in FIG. 1.
Fig. 2 zeigt nun abschnittsweise einen Sägezahndraht einer Ganzstahlgarnitur, wie sie für die in Fig. 1 gezeigte Trommel vorgesehen ist. Es handelt sich hierbei um einen Sägezahndraht mit einer Gesamthöhe von 2mm und einer Zahnteilung, gemessen von Zahnspitze 5 bis zur nächsten 5' von 1 ,7mm. Der zur Vertikalen gemessene Brustwinkel α der Zahnbrust 6 beträgt bei dem hier gezeigten Ausführungsbeispiel 40°. Anders als bei bisher bekannten Ganzstahlgarnituren schließt sich an die Zahnspitze nicht unmittelbar der Zahnrücken 7 an; vielmehr ist zunächst eine Kopffläche 8 vorgesehen. Der Winkel der Kopffläche ß, wiederum gemessen zur Vertikalen, beträgt bei dem in Fig. 2 gezeigten Ausführungsbeispiel 87°. Die Länge L der Kopffläche 8 beträgt 0,5mm, ihre Breite B (vgl. Fig. 3) beträgt 0,07 mm. Die Zahnhöhe H, gemessen vom Zahnfuß bis zur Zahnspitze 5 beträgt geringfügig weniger als 0,5mm.Fig. 2 now shows in sections a saw tooth wire of an all-steel set, as is provided for the drum shown in Fig. 1. It is a sawtooth wire with a total height of 2mm and a tooth pitch, measured from tooth tip 5 to the next 5 'of 1.7mm. The breast angle α of the tooth face 6 measured in relation to the vertical is 40 ° in the exemplary embodiment shown here. In contrast to previously known all-steel sets, the tooth back 7 does not directly adjoin the tooth tip; rather, a head surface 8 is initially provided. The angle of the head surface β, again measured with respect to the vertical, is 87 ° in the exemplary embodiment shown in FIG. 2. The length L of the head surface 8 is 0.5 mm, its width B (see FIG. 3) is 0.07 mm. The tooth height H, measured from the tooth base to the tooth tip 5, is slightly less than 0.5 mm.
Der durch die Zahnbrust 6 und den Zahnrücken 7 eingeschlossene Winkel y beträgt bei dem hier gezeigten Ausführungsbeispiel 24°.The angle y enclosed by the tooth face 6 and the tooth back 7 is 24 ° in the exemplary embodiment shown here.
In den Fig. 4 und 5 wird eine weitere Variante eines Sägezahndrahtes für eine erfindungsgemäße Ganzstahlgarnitur gezeigt. Für gleiche und ähnliche Bauteile werden dieselben Bezugszeichen wie für das vorherige Ausführungsbeispiel verwendet.4 and 5 show a further variant of a saw tooth wire for an all-steel fitting according to the invention. The same reference numerals are used for the same and similar components as for the previous embodiment.
Im Gegensatz zu dem vorherigen Ausführungsbeispiel beträgt der Abstand von Zahnspitze 5 bis zur benachbarten Zahnspitze 5' lediglich 1 ,5mm. Der Brustwinkel α beträgt lediglich 30°. Der zwischen Zahnbrust 6 und Zahnrücken 7 eingeschlossene Winkel y beträgt bei diesem Ausführungsbeispiel 25°.In contrast to the previous exemplary embodiment, the distance from the tooth tip 5 to the adjacent tooth tip 5 'is only 1.5 mm. The breast angle α is only 30 °. The angle y enclosed between tooth face 6 and tooth back 7 is 25 ° in this exemplary embodiment.
Im folgenden wird die Wirkungs- und Funktionsweise der zuvor beschriebenen Ausführungsbeispiele näher erläutert.The operation and functioning of the exemplary embodiments described above is explained in more detail below.
Grundsätzlich unterscheiden sich die beiden Ausführungsbeispiele nicht. Der in Fig. 2 dargestellte Sägezahndraht weist jedoch einen größeren Brustwinkel auf, der grundsätzlich für eine aktivere Faserübernahme günstig ist. Bestimmend für beide Varianten ist jedoch, dass bei einer verhältnismäßig geringen Zahnhöhe eine lange Kopffläche vorgesehen ist, die nahezu nicht geneigt ist und die daher der Zahnspitze und der gesamten Garnitur eine erhöhte Stabilität verleiht. Neben diesen Vorteilen ist jedoch besonders herauszuheben, dass sich die Zahngeometrie auch nach Überschleifen der Garnitur praktisch nicht ändert, so dass zum einen an allen Zähnen praktisch gleiche Verhältnisse vorliegen, und zum anderen die Kardierqualität sich auch nach dem Schleifen der Garnituren nicht ändert.The two exemplary embodiments do not differ fundamentally. The sawtooth wire shown in Fig. 2, however, has a larger chest angle, which is fundamentally favorable for a more active fiber takeover. What is decisive for both variants, however, is that with a relatively low tooth height, a long head surface is provided which is almost not inclined and which therefore gives the tooth tip and the entire set increased stability. In addition to these advantages, it should be emphasized that the tooth geometry does not change practically even after grinding the set, so that on the one hand practically the same conditions are present and on the other hand the carding quality does not change even after grinding the sets.
Das Aufziehen der Garnituren erfolgt in herkömmlicher Weise. The sets are pulled up in a conventional manner.

Claims

Patentansprüche claims
1. Ganzstahlgarnitur für Walzen und/oder Trommeln von Reinigern, Karden oder Krempeln, welche Walzen oder Trommeln eine höhere Umfangsgeschwindigkeit als in Faserfließrichtung jeweils vorgelagerte Walzen aufweisen, wobei die Ganzstahlgarnitur Zähne mit einem positiven Brustwinkel (α) von größer oder gleich 0° aufweist, dadurch gekennzeichnet, dass die Zähne einen Kopfwinkel (ß) aufweisen, der > 85° vorzugsweise > 87° ist, wobei die Länge L der sich unter diesem Winkel von der Zahnspitze (5) bis zum Zahnrücken (7) erstreckenden Kopffläche (8) mindestens 15% der Länge der Zahnteilung entspricht.1. All-steel clothing for rollers and / or drums of cleaners, cards or cards, which rollers or drums have a higher peripheral speed than the upstream rollers in the fiber flow direction, the all-steel clothing having teeth with a positive breast angle (α) of greater than or equal to 0 °, characterized in that the teeth have a head angle (β) which is> 85 ° preferably> 87 °, the length L of the head surface (8) extending at this angle from the tooth tip (5) to the tooth back (7) at least 15% corresponds to the length of the tooth pitch.
2. Ganzstahlgarnitur nach Anspruch 1 , dadurch gekennzeichnet, dass der Kopfwinkel (ß) des Zahns 90° beträgt.2. All-steel set according to claim 1, characterized in that the head angle (β) of the tooth is 90 °.
3. Ganzstahlgarnitur nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die3. All-steel set according to claim 1 or 2, characterized in that the
Länge (L) der Kopffläche (8) mindestens einem Viertel der Zahnteilung entspricht.The length (L) of the head surface (8) corresponds to at least a quarter of the tooth pitch.
4. Ganzstahlgarnitur nach einem der Ansprpüche 1 bis 3, dadurch gekennzeichnet, dass die Länge (L) der Kopffläche (8) mindestens dem Dreifachen, vorzugsweise dem Fünffachen ihrer Breite (B) entspricht.4. All-steel set according to one of claims 1 to 3, characterized in that the length (L) of the head surface (8) corresponds to at least three times, preferably five times its width (B).
5. Ganzstahlgarnitur nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Länge (L) der Kopffläche (8) größer oder gleich der halben Zahnhöhe (H), gemessen vom Zahngrund bis zur Zahnspitze (5) ist.5. All-steel set according to one of claims 1 to 4, characterized in that the length (L) of the head surface (8) is greater than or equal to half the tooth height (H), measured from the tooth base to the tooth tip (5).
6. Ganzstahlgarnitur nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der sich an die Kopffläche (8) anschließende Zahnrücken (7) mit der nachfolgenden Zahnbrust (6) einen Winkel y zwischen 20° und 30°, vorzugsweise 25° einschließt.6. All-steel set according to one of claims 1 to 5, characterized in that the tooth back (7) adjoining the head surface (8) with the following tooth face (6) encloses an angle y between 20 ° and 30 °, preferably 25 °.
7. Ganzstahlgarnitur nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Zahnhöhe (H) kleiner gleich 0,5mm beträgt. Karde mit einer Trommelumfangsgeschwindigkeit > 1500m/min und einer Trommelganzstahlgarnitur mit einer Gesamthöhe von < 3mm und einer Fußbreite von < 0,7mm, dadurch gekennzeichnet, dass die Trommelganzstahlgarnitur nach einem oder mehreren der vorhergehenden Ansprüche ausgebildet ist. 7. All-steel set according to one of claims 1 to 6, characterized in that the tooth height (H) is less than or equal to 0.5 mm. Carding machine with a peripheral drum speed> 1500m / min and a whole drum set with a total height of <3mm and a foot width of <0.7mm, characterized in that the whole drum set is designed according to one or more of the preceding claims.
EP03811735A 2002-11-25 2003-09-11 All-steel card clothing for rollers and/or drums of carders or carding machines Expired - Lifetime EP1576215B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10254918 2002-11-25
DE10254918A DE10254918A1 (en) 2002-11-25 2002-11-25 All-steel clothing for rolls and / or reels of cards or cards
PCT/EP2003/010124 WO2004048654A1 (en) 2002-11-25 2003-09-11 All-steel card clothing for rollers and/or drums of carders or carding machines

Publications (2)

Publication Number Publication Date
EP1576215A1 true EP1576215A1 (en) 2005-09-21
EP1576215B1 EP1576215B1 (en) 2006-12-20

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EP03811735A Expired - Lifetime EP1576215B1 (en) 2002-11-25 2003-09-11 All-steel card clothing for rollers and/or drums of carders or carding machines

Country Status (8)

Country Link
US (1) US7325278B2 (en)
EP (1) EP1576215B1 (en)
JP (1) JP2006514714A (en)
CN (1) CN100439578C (en)
AT (1) ATE348903T1 (en)
DE (2) DE10254918A1 (en)
ES (1) ES2277153T3 (en)
WO (1) WO2004048654A1 (en)

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EP2489766A2 (en) 2011-02-18 2012-08-22 Graf + Cie AG All steel trimming

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CN1703542A (en) 2005-11-30
EP1576215B1 (en) 2006-12-20
US7325278B2 (en) 2008-02-05
DE50306071D1 (en) 2007-02-01
ES2277153T3 (en) 2007-07-01
ATE348903T1 (en) 2007-01-15
WO2004048654A1 (en) 2004-06-10
US20060156516A1 (en) 2006-07-20
CN100439578C (en) 2008-12-03
JP2006514714A (en) 2006-05-11
DE10254918A1 (en) 2004-06-09

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