EP0143174B1 - Flat-clothing for carding machines - Google Patents

Flat-clothing for carding machines Download PDF

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Publication number
EP0143174B1
EP0143174B1 EP84109149A EP84109149A EP0143174B1 EP 0143174 B1 EP0143174 B1 EP 0143174B1 EP 84109149 A EP84109149 A EP 84109149A EP 84109149 A EP84109149 A EP 84109149A EP 0143174 B1 EP0143174 B1 EP 0143174B1
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European Patent Office
Prior art keywords
tooth
fibre
offset
run direction
flat
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EP84109149A
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German (de)
French (fr)
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EP0143174A3 (en
EP0143174A2 (en
Inventor
Ralph Graf
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Graf & Cie A-G
Graf und Cie AG
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Graf & Cie A-G
Graf und Cie AG
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    • 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
    • D01G15/86—Card clothing; Manufacture thereof not otherwise provided for with flexible non-metallic backing

Definitions

  • the invention relates to a cover set for carding machines, with a plurality of teeth inserted into rows of teeth in a scraper belt, each with a tooth bridge and a first tooth limb projecting from one end of the tooth bridge with a first tooth tip and a second tooth limb projecting from the opposite end of the tooth bridge have a second tooth tip.
  • DIN 64 108 describes the terms and sub-terms of scraper belts, from which the types of stitch emerge in particular. Diagonal stitching is used in particular for cover sets that are used on textile cards. This diagonal stitch is on page 2, section 2.2. the DIN 64108 explains.
  • the 4-diagonal stitch or 6-diagonal stitch is mainly used for the diagonal stitch. In the case of 4 diagonal stitches, the second row of teeth is offset by 1/2 tip width compared to the first. The offset corresponds to the aisle width g l . In the case of the 6-point diagonal stitch, the second row of teeth is offset by 1/3 tip width in relation to the first. Also z. B. a combination of diagonal stitches, ie 4 and 6 alternately used alternately.
  • European Patent Application No. 80 10 3579 (publication number 0041076) published on December 9, 1981 shows a trim set in which at least two teeth formed in succession in the carding direction by the scratch wires are laterally offset from the carding direction by a distance that is no more than the wire thickness of the scraper wire is such that the cover set has no free lanes.
  • a cover set is described which prevents the formation of alleys by a suitable type of setting. Experience has shown that an increased separation of impurities takes place in the carding process, and an increased degree of parallelization can also be achieved.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a cover set for carding machines, in which the offset of the teeth in the direction of fiber passage decreases, so that a funnel effect of the fitting is formed.
  • Fig. 1 shows schematically a cross section through a scraper belt 20 with inserted teeth 24.
  • the scraper belt is usually a laminated body made of different materials, eg. B. fabrics and plastics.
  • the scraping tape 20, for example, is made up of three layers 21, 22, 23 which are glued together. Hooks made of wire, i.e. teeth 1, are inserted in the scraper belt.
  • a respective tooth 24 has a tooth bridge 1, two tooth legs 25 and two tooth tips 2, 3. A distinction is made between the first tooth tip 2 and the second tooth tip 3.
  • FIG. 3 shows a first embodiment of the lid set according to the invention in a representation according to DIN 64108.
  • the view of the back of the scraper belt is shown, so the toothed webs 1 are visible.
  • the Fig. Is the view of the front of the scraper belt.
  • Deviating from the corresponding representation according to DIN 64 108 are for the sake of clarity only the tooth tips 2, 3 and not the tooth legs drawn.
  • the direction of fiber travel is designated by F.
  • the tooth tip located in the fiber passage direction F at the right end of a tooth bridge 1 is designated by the reference number 2 and the tooth tip located on the left relative thereto is designated by the reference number 3.
  • the rows of teeth are generally designated by the reference number 4, as indicated in FIG. 3. 3 can be regarded as starting from a diagonal stitch.
  • the tooth tips 2, 3 each determine straight lines which run at an oblique angle to the direction F of the fibers.
  • tooth tips 2, 3 which follow one another in the fiber passage direction F determine a curve line.
  • the tooth tips 2, 3 of successive rows of teeth 4 in the fiber passage direction F are offset from one another to a decreasing extent, such that the offset from row of teeth to row of teeth has a smaller dimension.
  • the lane width determined by the offset is generally designated by g.
  • the alley width g is indicated in particular as an example, which is determined by first tooth tips 2 arranged one behind the other in the fiber passage direction F according to the inventive concept. It can clearly be seen that this aisle width g becomes smaller from row to row.
  • the curve line C can be in a coordinate system x; Draw y, where x runs in the direction of the machine width and y in the direction of the cover width of the cover set, whereby the zero point 0 coincides with the lower left corner of the cover.
  • the slope of this curve line C is increasing. It can follow different mathematical relationships in the specified coordinate system.
  • This curve line C follows the relationship according to one embodiment a need not be an integer. As a result, the alley width g becomes smaller and smaller with increasing y and tends towards zero. Obviously, values that give g ⁇ 0 are meaningless because the alley width g can only be a positive number.
  • a further embodiment of the setting type according to FIGS. 3 and 4 is limited to the section of the curve line C used in each case.
  • the lid width is a measure given by a finite number, i.e. y [cm].
  • the utilized section of the curve line C can be a section with a small slope or also a section with a high slope of the curve line C.
  • the leading edge of the cover, seen in the fiber passage direction F, is designated 0% and the trailing edge is 100% cover width, the center is designated 50%, as shown in FIG. 3.
  • the section of the curve line C between 0% and 50% lid width obeys the relationship Ay ⁇ Ax.
  • the tangent T placed on the curve line C has an inclination angle of 45 ° or a tangent of 1.
  • the section of the curve line C between 50% and 100% lid width obeys the relationship Ay ⁇ Ax.
  • first and subsequent tooth rows 4 are offset from one another in groups with respect to the first and second tooth tips of tooth rows 4 preceding in the fiber passage direction F to an extent decreasing in the fiber passage direction F.
  • the design is based on the rib stitch, here for example a 5 rib stitch.
  • Three groups are shown one behind the other in the fiber passage direction F, groups 5, 6 and 7.
  • Group 5 has an aisle width g 1 ' corresponding to its offset
  • group 6 an aisle width g 2 corresponding to its offset
  • group 7 an aisle width g corresponding to its offset 3 on.
  • the tooth tips 2 of the leading group 5 determine a straight line 8, that of the group 6 a straight line 9 and that of the group 7 a straight line 10.
  • All toothed webs 1 have the same Length and only for the sake of clarity only the straight lines determined by the second tooth tips 2 on the right are drawn.
  • the straight line 9 has a greater slope than the straight line 8, and the straight line 10 in turn has a greater slope than the straight line 9.
  • the slope of the respective straight line 8, 9, 10 is based on the slope angle a, ⁇ 1 of the straight line 8: x °, ⁇ 2 of the straight line 9: (x + y) °, ⁇ 3 of the straight line 10: (x + 2y) °, ... etc.
  • the following applies to the last group n in the fiber passage direction F: ⁇ n (x + ny) ° ⁇ 90 °.
  • the alley width g thus moves asymptotically towards zero, or tg ⁇ n ⁇ .
  • the embodiment according to FIG. 6 is similar to that according to FIG. 3 in that one can speak of a rib stitch, but the offset within a respective group 11, 12, 13 ... follows the embodiment or the embodiments according to FIGS. 1 and 2.
  • the respective curve line C is drawn in FIG. 4.
  • the individual groups 11, 12, 13 ... each contain the same mathematical regularity of the offset or the curve line C.
  • the embodiment according to FIG. 7 differs from the embodiment according to FIG. 6 in that, similar to FIG. 5, the individual groups 14, 15, 16,... Do not have the same pattern, but rather the degree of decrease in the offset of the groups 14. 15, 16, ... is increasing in the fiber passage direction F.
  • all curve lines C have the same mathematical regularity.
  • the increase in the slope of the curve C 2 is greater than that of the curve C1
  • the increase in the slope of the curve C 3 is greater than that of the curve C 2 , ...
  • FIG. 8 An embodiment is shown in which only the offset of the first tooth tips 2 and thus the aisle widths g determined by them decrease in the fiber passage direction F. These first tooth tips 2 again determine a curve line C which has one of the above-mentioned regularities. The second tooth tips 3, however, define a diagonal line G. Thus, tooth bridges 1 of different lengths are present in this cover set.
  • FIG. 8 can also be grouped similarly to the embodiments according to e.g. B. FIGS. 6 and 7.
  • the shape and position of the fibers are changed gradually and to an increasing extent during parallelization, the fibers are thus treated more gently and congestion effects when the lid is being run in can be prevented.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die Erfindung betrifft eine Deckelgarnitur für Krempelmaschinen, mit einer Mehrzahl in einem Kratzenband in Zahnreihen eingesetzter Zähnen, die jeweils einen Zahnsteg und einen ersten, bei einem Ende des Zahnsteges abstehenden Zahnschenkel mit einer ersten Zahnspitze und einem zweiten, beim entgegengesetzten Ende des Zahnsteges abstehenden Zahnschenkel mit einer zweiten Zahnspitze aufweisen.The invention relates to a cover set for carding machines, with a plurality of teeth inserted into rows of teeth in a scraper belt, each with a tooth bridge and a first tooth limb projecting from one end of the tooth bridge with a first tooth tip and a second tooth limb projecting from the opposite end of the tooth bridge have a second tooth tip.

In den DIN 64 108 sind die Begriffe und Unterbegriffe von Kratzenbändern beschrieben, aus denen insbesondere die Sticharten hervorgehen. Für Deckelgarnituren, welche auf Textilkarden zur Anwendung kommen, wird insbesondere der Diagonalstich angewandt. Dieser Diagonalstich ist auf Seite 2, Ziffer 2.2. der DIN 64108 erklärt. Beim Diagonalstich kommt hauptsächlich der 4er Diagonalstich oder 6er Diagonalstich zur Anwendung. Beim 4er Diagonalstich ist jeweils die zweite Zahnreihe gegenüber der ersten um 1/2 Spitzenbreite versetzt. Der Versatz entspricht der Gassenbreite gl. Beim 6er Diagonalstich ist jeweils die zweite Zahnreihe gegenüber der ersten um 1/3 Spitzenbreite - versetzt. Ebenfalls wird z. B. eine Kombination von Diagonalstichen, d. h. 4er und 6er alternativ abwechselnd verwendet.DIN 64 108 describes the terms and sub-terms of scraper belts, from which the types of stitch emerge in particular. Diagonal stitching is used in particular for cover sets that are used on textile cards. This diagonal stitch is on page 2, section 2.2. the DIN 64108 explains. The 4-diagonal stitch or 6-diagonal stitch is mainly used for the diagonal stitch. In the case of 4 diagonal stitches, the second row of teeth is offset by 1/2 tip width compared to the first. The offset corresponds to the aisle width g l . In the case of the 6-point diagonal stitch, the second row of teeth is offset by 1/3 tip width in relation to the first. Also z. B. a combination of diagonal stitches, ie 4 and 6 alternately used alternately.

Diese Sticharten zeigen den Nachteil, daß stets eine Gassenbreite in Faserdurchlaufrichtung vom vordern bis hinteren Ende des Kratzenbeschlages vorhanden ist. Dadurch werden einzelne Fasern beim Kardierungsprozeß nicht erfaßt, d.h., sie wandern unkontrollierbar durch den Reinigungs-und Parallelisierungsprozeß, was dazu führt, daß Nissen und Verunreinigungen im Fasergut nicht ausgeschieden werden.These types of stitch have the disadvantage that there is always an aisle width in the direction of fiber passage from the front to the rear end of the scraper fitting. As a result, individual fibers are not detected during the carding process, i.e. they migrate uncontrollably through the cleaning and parallelization process, which means that nits and impurities in the fiber material are not eliminated.

In der am 9. Dezember 1981 veröffentlichten Europäischen Patentanmeldung Nr. 80 10 3579 (Veröffentlichungsnummer 0041076) ist eine Dekkelgarnitur gezeigt, bei welcher mindestens zwei in Kardierrichtung aufeinanderfolgende von den Kratzendrähten gebildete Zähne seitlich zur Kardierrichtung um einen Abstand versetzt angeordnet sind, der nicht mehr als die Drahtstärke des Kratzendrahtes ist, derart, daß die Deckelgarnitur keine freien Gassen aufweist. Es ist eine Deckelgarnitur beschrieben, die die Gassenbildung durch eine geeignete Setzart verhindert. Die Erfahrungen haben gezeigt, daß wohl eine erhöhte Ausscheidung von Verunreinigungen im Krempelprozeß stattfindet, ebenfalls kann ein erhöhter Parallelisierungsgrad erreicht werden.European Patent Application No. 80 10 3579 (publication number 0041076) published on December 9, 1981 shows a trim set in which at least two teeth formed in succession in the carding direction by the scratch wires are laterally offset from the carding direction by a distance that is no more than the wire thickness of the scraper wire is such that the cover set has no free lanes. A cover set is described which prevents the formation of alleys by a suitable type of setting. Experience has shown that an increased separation of impurities takes place in the carding process, and an increased degree of parallelization can also be achieved.

Dies hat jedoch dazu geführt, daß beim Deckeleinlauf, d.h. an der Vorderseite jedes einzelnen Deckels eine Stauwirkung des Faserguts entstanden ist. Diese Stauwirkung verursacht nun, daß die jeweils nachfolgenden Krempelzähne der Deckelgarnituren nicht mehr optimal zum Einsatz gelangen, d. h. den Zweck der Ausscheidung nicht erfüllen, und dieser Stauprozeß wirkt sich negativ auf den Kardierprozeß aus. Die Stauwirkung ist umso höher, je höher die Durchsatzleistung der Krempelmaschine ist.However, this has led to the fact that at the lid infeed, i.e. a jamming effect of the fiber material has arisen at the front of each individual cover. This jamming effect now causes the subsequent carding teeth of the cover sets to no longer be used optimally, i. H. does not serve the purpose of excretion and this jamming process has a negative effect on the carding process. The higher the throughput of the carding machine, the greater the accumulation effect.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, eine Deckelgarnitur für Krempelmaschinen zu schaffen, bei der der Versatz der Zähne in Faserdurchlaufrichtung abnimmt, so daß dadurch eine Trichterwirkung des Beschlages gebildet ist.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a cover set for carding machines, in which the offset of the teeth in the direction of fiber passage decreases, so that a funnel effect of the fitting is formed.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, daß beim Deckeleinlauf vorerst nur gröbere Verunreinigungen ausgeschieden werden, so daß keine Stauwirkung entsteht. Feinere Verunreinigungen werden erst im mittleren oder hinteren Teil des Beschlages ausgeschieden. Weiter werden die Fasern schonender behandelt, da die Krafteinwirkung auf dieselben durch die Zähne nur allmählich zunimmt. Schließlich wird ein erhöhter Parallelisierungsgrad der Fasern erreicht.The advantages achieved by the invention are essentially to be seen in the fact that initially only coarser impurities are excreted when the cover is infeed, so that there is no accumulation effect. Finer impurities are only excreted in the middle or rear part of the fitting. The fibers are also treated more gently, since the force exerted on them by the teeth only increases gradually. Finally, an increased degree of parallelization of the fibers is achieved.

Im folgenden wird die Erfindung anhand von mehreren Ausführungswegen darstellenden Zeichnungen näher erläutert. Es zeigt:

  • Fig. 1 schematisch einen Querschnitt durch ein Kratzenband mit eingesetzten Zähnen;
  • Fig. 2 eine Seitenansicht eines in der Fig. 1 gezeigten Zahnes;
  • Fig. 3 eine Darstellung eines Kratzenbandes gemäß DIN 64108 einer ersten Ausführung der Erfindung;
  • Fig. 4 die Zahnspitzenverteilung bei der Vorderseite eines Kratzenbandes gemäß der Ausführung nach Fig. 1;
  • Fig. 5 die Darstellung eines Kratzenbandes gemäß DIN 64108 einer rippenstichähnlichen Ausführung der Erfindung;
  • Fig. 6 die Darstellung einer dritten Ausführung mit sich wiederholendem Rapport;
  • Fig. 7 die Darstellung einer vierten Ausführung der Erfindung;
  • Fig. 8 die Darstellung einer fünften Ausführung mit Zähnen, deren Stege unterschiedliche Längen aufweisen.
In the following, the invention will be explained in more detail with reference to drawings showing several possible embodiments. It shows:
  • Figure 1 shows schematically a cross section through a scraper belt with inserted teeth.
  • Fig. 2 is a side view of a tooth shown in Fig. 1;
  • 3 shows an illustration of a scraper belt according to DIN 64108 of a first embodiment of the invention;
  • 4 shows the tooth tip distribution on the front of a scraper belt according to the embodiment according to FIG. 1;
  • 5 shows the representation of a scraper belt according to DIN 64108 of a rib stitch-like embodiment of the invention;
  • 6 shows the representation of a third embodiment with repeating repeat;
  • 7 shows a fourth embodiment of the invention;
  • Fig. 8 shows a fifth embodiment with teeth, the webs of which have different lengths.

Die Fig. 1 zeigt schematisch einen Querschnitt durch ein Kratzenband 20 mit eingesetzten Zähnen 24. Üblicherweise ist das Kratzenband ein Schichtkörper aus verschiedenen Stoffen, z. B. Geweben und Kunststoffen. Das beispielsweise Kratzenband 20 ist aus drei miteinander verklebten Schichten 21, 22, 23 aufgebaut. Im Kratzenband sind aus Draht hergestellte Häkchen, also die Zähne 1 eingesetzt. Gemäß der Fig. 1 und insbesondere der Fig. 2 weist ein jeweiliger Zahn 24 einen Zahnsteg 1, zwei Zahnschenkel 25 und zwei Zahnspitzen 2, 3 auf. Dabei wird nachfolgend zwischen jeweils der ersten Zahnspitze 2 und der zweiten Zahnspitze 3 unterschieden.Fig. 1 shows schematically a cross section through a scraper belt 20 with inserted teeth 24. The scraper belt is usually a laminated body made of different materials, eg. B. fabrics and plastics. The scraping tape 20, for example, is made up of three layers 21, 22, 23 which are glued together. Hooks made of wire, i.e. teeth 1, are inserted in the scraper belt. According to FIG. 1 and in particular FIG. 2, a respective tooth 24 has a tooth bridge 1, two tooth legs 25 and two tooth tips 2, 3. A distinction is made between the first tooth tip 2 and the second tooth tip 3.

In der Fig. 3 ist eine erste Ausführung der erfindungsgemäßen Deckelgarnitur in einer Darstellung nach DIN 64108 gezeichnet. Gezeigt ist die Ansicht der Rückseite des Kratzenbandes, also sind die Zahnstege 1 sichtbar. Die Fig. ist die Ansicht der Vorderseite des Kratzenbandes. Abweichend von der entsprechenden Darstellung nach DIN 64 108 sind der Übersichtlichkeit halber lediglich die Zahnspitzen 2, 3 und nicht die Zahnschenkel gezeichnet. Die Faserdurchlaufrichtung ist mit F bezeichnet. Die in Faserdurchlaufrichtung F beim jeweils rechten Ende eines Zahnsteges 1 gelegene Zahnspitze ist mit der Bezugsziffer 2 und die relativ dazu links gelegene Zahnspitze mit der Bezugsziffer 3 bezeichnet. Die Zahnreihen sind allgemein, wie in der Fig. 3 angedeutet, mit der Bezugsziffer 4 bezeichnet. Das Setzmuster der Fig. 3 kann als von einem Diagonalstich ausgehend betrachtet werden. Beim Diagonalstich bestimmen die Zahnspitzen 2, 3 jeweils Geraden, die schiefwinklig zur Faserdurchlaufrichtung F verlaufen. Im Gegensatz dazu bestimmen gemäß der Ausführung nach Fig. 3 in Faserdurchlaufrichtung F aufeinanderfolgende Zahnspitzen 2, 3 eine Kurvenlinie. Die Zahnspitzen 2, 3 in Faserdurchlaufrichtung F aufeinanderfolgender Zahnreihen 4 sind in einem abnehmenden Maß zueinander versetzt, derart, daß der Versatz von Zahnreihe zu Zahnreihe ein kleineres Maß aufweist. Die vom Versatz bestimmte Gassenbreite ist allgemein mit g bezeichnet. In der Fig. 1 sind insbesondere als Beispiel die Gassenbreite g angedeutet, die durch jeweils in Faserdurchlaufrichtung F hintereinander gelegenen gemäß des Erfindungsgedankens versetzt angeordneten, ersten Zahnspitzen 2 bestimmt ist. Es ist deutlich ersichtlich, daß diese Gassenbreite g von Reihe zu Reihe kleiner wird.3 shows a first embodiment of the lid set according to the invention in a representation according to DIN 64108. The view of the back of the scraper belt is shown, so the toothed webs 1 are visible. The Fig. Is the view of the front of the scraper belt. Deviating from the corresponding representation according to DIN 64 108 are for the sake of clarity only the tooth tips 2, 3 and not the tooth legs drawn. The direction of fiber travel is designated by F. The tooth tip located in the fiber passage direction F at the right end of a tooth bridge 1 is designated by the reference number 2 and the tooth tip located on the left relative thereto is designated by the reference number 3. The rows of teeth are generally designated by the reference number 4, as indicated in FIG. 3. 3 can be regarded as starting from a diagonal stitch. In the case of the diagonal stitch, the tooth tips 2, 3 each determine straight lines which run at an oblique angle to the direction F of the fibers. In contrast to this, according to the embodiment according to FIG. 3, tooth tips 2, 3 which follow one another in the fiber passage direction F determine a curve line. The tooth tips 2, 3 of successive rows of teeth 4 in the fiber passage direction F are offset from one another to a decreasing extent, such that the offset from row of teeth to row of teeth has a smaller dimension. The lane width determined by the offset is generally designated by g. In FIG. 1, the alley width g is indicated in particular as an example, which is determined by first tooth tips 2 arranged one behind the other in the fiber passage direction F according to the inventive concept. It can clearly be seen that this aisle width g becomes smaller from row to row.

Betrachtet man rein schematisch die Zahnspitzen 2 der jeweils dieselbe Länge der Zahnstege 1 aufweisenden Zähne der Fig. 1, bestimmen diese Zahnspitzen 2 eine Kurvenlinie C. Die Kurvenlinie C läßt sich in einem Koordinatensystem x; y zeichnen, bei welchem x in Richtung der Maschinenbreite und y in Richtung der Deckelbreite der Dekkelgarnitur verläuft, wobei der Nullpunkt 0 mit der Ecke unten links des Deckels zusammenfällt. Die Steigung dieser Kurvenlinie C ist zunehmend. Sie kann dabei verschieden mathematische Beziehungen im angegebenen Koordinatensystem folgen.If the tooth tips 2 of the teeth of FIG. 1 each having the same length of the tooth bars 1 are viewed purely schematically, these tooth tips 2 determine a curve line C. The curve line C can be in a coordinate system x; Draw y, where x runs in the direction of the machine width and y in the direction of the cover width of the cover set, whereby the zero point 0 coincides with the lower left corner of the cover. The slope of this curve line C is increasing. It can follow different mathematical relationships in the specified coordinate system.

Diese Kurvenlinie C folgt gemäß einer Ausführung der Beziehung

Figure imgb0001
a muß dabei nicht ganzzahlig sein. Folglich wird die Gassenbreite g mit zunehmenden y immer kleiner und strebt gegen Null. Offensichtlich sind Werte, die g < 0 ergeben, sinnlos, weil die Gassenbreite g nur eine positive Zahl sein kann.This curve line C follows the relationship according to one embodiment
Figure imgb0001
 a need not be an integer. As a result, the alley width g becomes smaller and smaller with increasing y and tends towards zero. Obviously, values that give g <0 are meaningless because the alley width g can only be a positive number.

Bei einer weiteren Ausführung folgt die Kurvenlinie C allgemein der Beziehung

Figure imgb0002
A und k sind Konstanten. Setzt man diese = 1, lautet die Beziehung
Figure imgb0003
a ist eine Variable, kann somit auch den mathematischen Wert e (Basis der natürlichen Logarithmen) annehmen. Solche Kurven verlaufen nicht asymptotisch. Da jedoch die Zahnschenkel einen endlichen Wert des Durchmessers aufweisen, wird auch mit dieser Ausführungsform bei einem berechenbaren Wert von y die Gassenbreite g = 0 werden.In another embodiment, curve line C generally follows the relationship
Figure imgb0002
 A and k are constants. If you set this = 1, the relationship is
Figure imgb0003
 a is a variable and can therefore also assume the mathematical value e (the basis of natural logarithms). Such curves are not asymptotic. However, since the tooth limbs have a finite value of the diameter, the aisle width g = 0 will also be with this embodiment with a calculable value of y.

Eine weitere Ausführungsform dem Setzart nach den Fig. 3 und 4 ist auf den jeweils verwendeten Abschnitt der Kurvenlinie C beschränkt. Die Deckelbreite beträgt ein durch eine endliche Zahl vorgegebenes Maß, d.h. y[cm]. Somit kann der ausgenützte Abschnitt der Kurvenlinie C einen Abschnitt mit einer kleinen Steigung oder auch einen Abschnitt mit einer hohen Steigung der Kurvenlinie C sein. Der in Faserdurchlaufrichtung F gesehen vorlaufende Rand des Deckels sei mit 0% und der nachlaufende Rand mit 100% Deckelbreite bezeichnet, die Mitte sei mit 50% bezeichnet, wie in der Fig. 3 eingezeichnet.A further embodiment of the setting type according to FIGS. 3 and 4 is limited to the section of the curve line C used in each case. The lid width is a measure given by a finite number, i.e. y [cm]. Thus, the utilized section of the curve line C can be a section with a small slope or also a section with a high slope of the curve line C. The leading edge of the cover, seen in the fiber passage direction F, is designated 0% and the trailing edge is 100% cover width, the center is designated 50%, as shown in FIG. 3.

Bei dieser weiteren Ausführungsform gehorcht der Abschnitt der Kurvenlinie C zwischen 0% und 50% Deckelbreite der Beziehung Ay < Ax. Bei 50% Deckelbreite lautet die Beziehung Ay = Ax. An dieser Stelle weist die an die Kurvenlinie C gelegte Tangente T einen Neigungswinkel von 45°, bzw. einen Tangens von 1 auf. Schließlich gehorcht der zwischen 50% und 100% Deckelbreite verlaufende Abschnitt der Kurvenlinie C der Beziehung Ay < Ax. Damit ist der Abstand zwischen den Mittellinien der Zahnstege von in Faserdurchlaufrichtung F aufeinanderfolgenden Zahnreihen 4 im Bereich der vorderen (vorlaufenden) Hälfte des Deckels kleiner als das Maß des Versatzes, im Bereich der halben Breite des Dekkels gleich dem Maß des Versatzes, und im Bereich der hinteren (nachlaufenden) Hälfte des Deckels größer als das Maß des Versatzes.In this further embodiment, the section of the curve line C between 0% and 50% lid width obeys the relationship Ay <Ax. At 50% lid width, the relationship is Ay = Ax. At this point, the tangent T placed on the curve line C has an inclination angle of 45 ° or a tangent of 1. Finally, the section of the curve line C between 50% and 100% lid width obeys the relationship Ay <Ax. Thus, the distance between the center lines of the tooth webs of tooth rows 4 successive in the fiber passage direction F is smaller in the area of the front (leading) half of the cover than the amount of offset, in the area of half the width of the cover is equal to the amount of offset, and in the area of rear (trailing) half of the cover larger than the amount of offset.

Es sind nun oben einige Ausführungen des Verlaufes der Kurvenlinie C erläutert worden. Nachfolgend werden weitere Ausführungen beschrieben, bei denen die Zahnspitzen Kurvenlinien bestimmen. Es sei hier festgehalten, daß diese Kurvenlinien ebenfalls gemäß den obigen verschiedenen beispielsweisen Ausführungen verlaufen und somit wird nachfolgend nicht nochmals jede mögliche Kombination der Ausführungen des Verlaufes der Kurvenlinien C beschrieben.Some explanations of the course of the curve line C have now been explained above. Further versions are described below in which the tooth tips determine curve lines. It should be noted here that these curve lines also run in accordance with the various exemplary embodiments above, and therefore each possible combination of the versions of the course of the curve lines C is not described again below.

In der Fig. 5 ist eine Ausführung gezeigt, bei welcher die ersten und nachfolgenden Zahnreihen 4 gegenüber den ersten und zweiten Zahnspitzen von in Faserdurchlaufrichtung F vorangehenden Zahnreihen 4 gruppenweise in einem in Faserdurchlaufrichtung F abnehmenden Maß zueinander versetzt sind.5 shows an embodiment in which the first and subsequent tooth rows 4 are offset from one another in groups with respect to the first and second tooth tips of tooth rows 4 preceding in the fiber passage direction F to an extent decreasing in the fiber passage direction F.

Die Ausführung geht vom Rippenstich aus, hier beispielsweise von 5er Rippenstich. Gezeichnet sind drei in Faserdurchlaufrichtung F hintereinander gelegene Gruppen, die Gruppen 5, 6 und 7. Die Gruppe 5 weist eine ihrem Versatz entsprechende Gassenbreite g1' die Gruppe 6 eine ihrem Versatz entsprechende Gassenbreite g2 und die Gruppe 7 eine ihrem Versatz entsprechende Gassenbreite g3 auf. Beispielsweise bestimmen die Zahnspitzen 2 der vorlaufenden Gruppe 5 eine Gerade 8, die der Gruppe 6 eine Gerade 9 und die der Gruppe 7 eine Gerade 10. Alle Zahnstege 1 weisen dieselbe Länge auf und es sind lediglich der Übersichtlichkeit halber nur die durch die jeweils rechts liegenden, zweiten Zahnspitzen 2 bestimmten Geraden gezeichnet. Im Koordinatensystem x, y weist die Gerade 9 eine größere Steigung als die Gerade 8, und die Gerade 10 ihrerseits eine größere Steigung als die Gerade 9 auf. Damit ergeben sich die in Faserdurchlaufrichtung F gruppenweise kleinere Gassenbreiten g" g2' g3, .... Definiert man im Koordinatensystem x; y die Steigung der jeweiligen Geraden 8, 9, 10 basiert auf den Steigungswinkel a, beträgt α1 der Gerade 8 : x°, α2 der Gerade 9 : (x + y)°, α3 der Gerade 10 : (x + 2y)° , ... usw. In der y-Richtung gesehen ist eine endliche Zahl Gruppen 5, 6, 7 ... vorhanden. Dazu gilt für die in Faserdurchlaufrichtung F letzte Gruppe n : αn = (x + ny)° < 90°. Die Gassenbreite g bewegt sich also asymptotisch gegen Null, bzw. gilt tgαn<∞.The design is based on the rib stitch, here for example a 5 rib stitch. Three groups are shown one behind the other in the fiber passage direction F, groups 5, 6 and 7. Group 5 has an aisle width g 1 ' corresponding to its offset, group 6 an aisle width g 2 corresponding to its offset and group 7 an aisle width g corresponding to its offset 3 on. For example, the tooth tips 2 of the leading group 5 determine a straight line 8, that of the group 6 a straight line 9 and that of the group 7 a straight line 10. All toothed webs 1 have the same Length and only for the sake of clarity only the straight lines determined by the second tooth tips 2 on the right are drawn. In the coordinate system x, y, the straight line 9 has a greater slope than the straight line 8, and the straight line 10 in turn has a greater slope than the straight line 9. This results in the lane widths g "g 2 ' g 3 , ... which are smaller in groups in the fiber passage direction F. If one defines in the coordinate system x; y the slope of the respective straight line 8, 9, 10 is based on the slope angle a, α 1 of the straight line 8: x °, α 2 of the straight line 9: (x + y) °, α 3 of the straight line 10: (x + 2y) °, ... etc. Seen in the y direction there is a finite number of groups 5, 6 , 7 ... The following applies to the last group n in the fiber passage direction F: α n = (x + ny) ° <90 °. The alley width g thus moves asymptotically towards zero, or tgα n <∞.

Die Ausführung nach Fig. 6 ähnelt derjenigen nach Fig. 3 insofern, daß von einem Rippenstich gesprochen werden kann, jedoch folgt der Versatz innerhalb einer jeweiligen Gruppe 11, 12, 13 ... der Ausführung, bzw. den Ausführungen nach Fig. 1 und 2. Zur Verdeutlichung ist in Fig. 4 die jeweilige Kurvenlinie C eingezeichnet. Die einzelnen Gruppen 11, 12, 13 ... enthalten jeweils dieselbe mathematische Gesetzmäßigkeit des Versatzes, bzw. der Kurvenlinie C.The embodiment according to FIG. 6 is similar to that according to FIG. 3 in that one can speak of a rib stitch, but the offset within a respective group 11, 12, 13 ... follows the embodiment or the embodiments according to FIGS. 1 and 2. For clarification, the respective curve line C is drawn in FIG. 4. The individual groups 11, 12, 13 ... each contain the same mathematical regularity of the offset or the curve line C.

Die Ausführung nach Fig. 7 unterscheidet sich von der Ausführung nach Fig. 6, indem ähnlich der Fig. 5 die einzelnen Gruppen 14, 15, 16, ... nicht dasselbe Muster aufweisen, sondern das Maß der Abnahme des Versatzes der Gruppen 14, 15, 16, ... in Faserdurchlaufrichtung F zunehmend ist. In der Fig. 6 weisen alle Kurvenlinien C dieselbe mathematische Gesetzmäßigkeit auf. In der Fig. 7 hingegen ist die Zunahme der Steigung der Kurve C2 größer als die der Kurve C1, und die Zunahme der Steigung der Kurve C3 ist größer als die der Kurve C2, .... Beispielsweise kann die Kurvenlinie C1 die Beziehung x = y2, die Kurvenlinie C2 die Beziehung x = y3, und die Kurvenlinie C3 die Beziehung x = y4 aufweisen, oder im Falle von Exponentialkurven kann für C1 gelten: y = Ae2x, für C2: y = Ae3X, und für C3: y = Ae4x .The embodiment according to FIG. 7 differs from the embodiment according to FIG. 6 in that, similar to FIG. 5, the individual groups 14, 15, 16,... Do not have the same pattern, but rather the degree of decrease in the offset of the groups 14. 15, 16, ... is increasing in the fiber passage direction F. In Fig. 6, all curve lines C have the same mathematical regularity. In contrast, in FIG. 7 the increase in the slope of the curve C 2 is greater than that of the curve C1, and the increase in the slope of the curve C 3 is greater than that of the curve C 2 , ... For example, the curve line C 1 the relationship x = y 2 , the curve line C 2 the relationship x = y 3 , and the curve line C 3 the relationship x = y4, or in the case of exponential curves the following can apply for C 1 : y = Ae2x, for C 2 : y = Ae 3X , and for C 3 : y = Ae 4x .

In der Fig. 8 ist eine Ausführung dargestellt, bei welcher lediglich der Versatz der ersten Zahnspitzen 2 und damit die von ihnen bestimmten Gassenbreiten g in Faserdurchlaufrichtung F abnehmend sind. Diese ersten Zahnspitzen 2 bestimmen wieder eine Kurvenlinie C, die eine der oben erwähnten Gesetzmäßigkeiten aufweist. Die zweiten Zahnspitzen 3 bestimmen jedoch eine diagonal verlaufende Gerade G. Somit sind bei dieser Deckelgarnitur verschieden lange Zahnstege 1 vorhanden.An embodiment is shown in FIG. 8, in which only the offset of the first tooth tips 2 and thus the aisle widths g determined by them decrease in the fiber passage direction F. These first tooth tips 2 again determine a curve line C which has one of the above-mentioned regularities. The second tooth tips 3, however, define a diagonal line G. Thus, tooth bridges 1 of different lengths are present in this cover set.

Die in der Fig. 8 gezeigte Ausführung läßt sich in weiteren Varianten auch gruppenweise ähnlich den Ausführungen nach z. B. den Fig. 6 und Fig. 7 setzen.The embodiment shown in FIG. 8 can also be grouped similarly to the embodiments according to e.g. B. FIGS. 6 and 7.

Durch den in Faserdurchlaufrichtung F in zunehmenden Maß kleiner werdenden Versatz und damit Gassenbreite ergibt sich beim Kardieren eine Trichterwirkung.Due to the increasingly smaller offset in the fiber passage direction F and thus the width of the aisle, a funnel effect results when carding.

Im vorlaufenden Bereich des Deckels werden vorerst nur die gröberen Verunreinigungen ausgeschieden und damit ergeben sich keine Stauwirkungen bei nachlaufenden Bereichen des Dekkels auf Grund von z.B. Blockierungserscheinungen.Only the coarser impurities are excreted in the leading area of the cover and therefore there are no congestion effects in trailing areas of the cover due to e.g. Signs of blockage.

Zudem werden die Form und Lage der Fasern beim Parallelisieren allmählich und in einem ansteigenden Ausmaß geändert, werden die Fasern somit schonender behandelt und Stauwirkungen beim Deckeleinlauf können verhindert werden.In addition, the shape and position of the fibers are changed gradually and to an increasing extent during parallelization, the fibers are thus treated more gently and congestion effects when the lid is being run in can be prevented.

Claims (9)

1. Flat-clothing for carding machines, with a plurality of teeth (24) which are inserted in a card strip (20) in tooth rows (4) and which each have a tooth web (1), a first tooth leg which projects at one end of the tooth web (1) and has a first tooth tip (2) and a second tooth leg which projects at the opposite end of the tooth web (1) and has a second tooth tip (3), characterized in that at least the first tooth tips (2) of tooth rows (4) trailing in the fibre-run direction (F) are offset relative to the first tooth tips (2) of tooth rows (4) leading in the fibre-run direction (F), at least in groups, by an amount decreasing in the fibre-run direction (F).
2. Flat-clothing according to Claim 1, characterized in that the amount of decrease of the offset approaches zero asymptotically.
3. Flat-clothing according to Claim 1, characterized in that the amount of decrease of the offset decreases exponentially.
4. Flat-clothing according to Claim 1, characterized in that the distance between the centre lines of the tooth webs (1) have tooth rows (4) succeeding one another in the fibre-run direction (F) is less than the amount of the offset in the region of the leading half of the flat, equal to the amount of the offset in the region of half the flat width and greater than the amount of the offset in the region of the trailing half of the flat.
5. Flat-clothing according to Claim 1, characterized in that the first (2) and second tooth tips (3) of tooth rows (4) trailing in the fibre-run direction (F) are offset relative to the first (2) and second tooth tips (3) of tooth rows leading in the fibre-run direction (F), at least in groups, by an amount decreasing in the fibre-run direction (F).
6. Flat-clothing according to Claim 5, which is grouped in an «n»-fold rib set, characterized in that the amount of the offset of the tooth rows (4) within a particular «n»-fold group (5, 6, 7) is the same, and in that «n»-fold groups trailing in the fibre-run direction (F) have a smaller offset than «n»-fold groups leading in the fibre-run direction (F).
7. Flat-clothing according to Claim 5, grouped in an «n»-fold rib set, characterized in that all the groups (11, 12, 13) have the same set-pattern, and in that the amount of the offset within each group decreases in the fibre-run direction (F).
8. Flat-clothing according to Claim 5, grouped in an «n»-fold rib set, characterized in that the amount of the offset within each «n»-fold group (14,15,16) decreases in the fibre-run direction (F), and in that, in «n»-fold groups trailing in the fibre-run direction (F), the amount of decrease of the offset is greater than the amount of decrease of the offset of «n»-fold groups leading in the fibre-run direction (F).
9. Flat-clothing according to Claim 1, characterized in that the first tooth tips (2) of tooth rows (4) trailing in the fibre-run direction (F) are offset relative to the first tooth tips (2) of tooth rows (4) leading in the fibre-run direction (F) by an amount decreasing in the fibre-run direction (F), and in that the second tooth tips (3) of tooth rows (4) trailing in the fibre-run direction (F) are offset by an invariable amount relative to the second tooth tips (3) of tooth rows (4) leading in the fibre-run direction (F).
EP84109149A 1983-09-29 1984-08-02 Flat-clothing for carding machines Expired EP0143174B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5285/83A CH661531A5 (en) 1983-09-29 1983-09-29 LID SET FOR CRAMPING MACHINES.
CH5285/83 1983-09-29

Publications (3)

Publication Number Publication Date
EP0143174A2 EP0143174A2 (en) 1985-06-05
EP0143174A3 EP0143174A3 (en) 1987-01-14
EP0143174B1 true EP0143174B1 (en) 1989-03-01

Family

ID=4291020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109149A Expired EP0143174B1 (en) 1983-09-29 1984-08-02 Flat-clothing for carding machines

Country Status (8)

Country Link
US (1) US4590645A (en)
EP (1) EP0143174B1 (en)
JP (1) JPS6075617A (en)
BR (1) BR8404778A (en)
CH (1) CH661531A5 (en)
DE (1) DE3476899D1 (en)
ES (1) ES8505423A1 (en)
HK (1) HK97189A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2651541B2 (en) * 1986-12-11 1997-09-10 金井 宏之 Top needle implanter
JP2676356B2 (en) * 1988-03-10 1997-11-12 金井 宏之 Top needle implanter
JP2676363B2 (en) * 1988-05-07 1997-11-12 金井 宏之 Needle transplanter for band needle cloth
DE3924890A1 (en) * 1989-07-27 1991-02-07 Wolters Peter Fa LID SET FOR A CARD
JPH055882U (en) * 1991-06-28 1993-01-26 金井 宏之 High pile clothing
CZ279649B6 (en) * 1993-06-03 1995-05-17 Rieter Elitex A.S. Combing roller of spindleless spinning machine separating device and process for producing thereof
GB2299593A (en) * 1995-03-31 1996-10-09 Holdsworth James & Brothers Card clothing
DE19956911A1 (en) * 1999-11-26 2001-05-31 Staedtler & Uhl Clothing for a textile carding/combing machine has structured needles or sawteeth with free passage zones between them which do not become clogged for an improved cleaning and combing action
CN109023605B (en) * 2018-08-21 2021-07-02 金轮针布(江苏)有限公司 Flat clothing strip for carding machine
CH715824A1 (en) * 2019-02-08 2020-08-14 Graf + Cie Ag Flat clothing for a revolving flat of a card.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE442972C (en) * 1927-04-13 Wolters Peter Fa Valance sheet for carding rollers
DE293546C (en) *
JPS51127224A (en) * 1975-04-24 1976-11-05 Kanai Hiroyuki Top needle cloth
JPS5431537A (en) * 1977-08-15 1979-03-08 Hitachi Ltd Switchgear insulated by gas
CH644902A5 (en) * 1980-05-29 1984-08-31 Graf & Co Ag LID SET FOR CARD.

Also Published As

Publication number Publication date
ES534856A0 (en) 1985-06-01
EP0143174A3 (en) 1987-01-14
US4590645A (en) 1986-05-27
JPS6075617A (en) 1985-04-30
DE3476899D1 (en) 1989-04-06
ES8505423A1 (en) 1985-06-01
EP0143174A2 (en) 1985-06-05
BR8404778A (en) 1985-08-13
HK97189A (en) 1989-12-15
CH661531A5 (en) 1987-07-31

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