EP3497271B1 - Card wire - Google Patents
Card wire Download PDFInfo
- Publication number
- EP3497271B1 EP3497271B1 EP17739943.3A EP17739943A EP3497271B1 EP 3497271 B1 EP3497271 B1 EP 3497271B1 EP 17739943 A EP17739943 A EP 17739943A EP 3497271 B1 EP3497271 B1 EP 3497271B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tooth
- section
- saw
- wire
- teeth
- 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.)
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Links
- 230000007704 transition Effects 0.000 claims description 17
- 230000001154 acute effect Effects 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 description 24
- 239000002657 fibrous material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241001417494 Sciaenidae Species 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000021197 fiber intake Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- D01G15/84—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 a sawtooth wire for rollers of spinning preparation machines, such as cards, in particular a sawtooth wire for a spool.
- Such sawtooth wires are usually produced as strand material, optionally rolled up on transport rollers and, for use, drawn helically or helically along an outer circumference of a corresponding roller, for example a tambour roller. Rollers formed in this way are used for a wide variety of purposes. There are cleaning rollers designed to separate incoming fibrous material from impurities such as cotton boll material. Other sawtooth wires, on the other hand, are designed to loosen fibers and parallelize them, as is the case, for example, with the tambour rollers of cards. In the case of intermediate rollers in a processing chain, there is a need to remove fiber material from an upstream location and deliver it to a downstream location, and to do this at the highest possible speed.
- a deepest area between two teeth usually the transition area between the tooth face of one tooth and the tooth back of the next tooth (hereinafter referred to as the tooth gap) in the row of teeth of the sawtooth wire, has transverse to the longitudinal extent of the sawtooth wire seen when stretched out, a distance from a bearing surface of the sawtooth wire on the roller which is sufficiently small to be able to bend the sawtooth wire so that it can be wound around the associated roller as described above and so mounted on that roller.
- fibers tend to accumulate in this transition area and thus have the effect that fiber material that can be used per se does not reach further processing, ie, for example, is not removed from a removing roller.
- the object of the invention is to at least reduce this disadvantage. This object is solved by the subject matter of claim 1. Advantageous developments of the invention are specified in the dependent claims.
- a sawtooth wire which is set up to be drawn helically or helically onto a roller of a spinning preparation machine along an outer circumference of the roller and essentially transversely to its axis of rotation.
- the sawtooth wire is preferably produced in a known manner as a strand material, for example rolled onto a transport roller and, when being pulled onto a roller, is drawn on the outer circumference in a helical or helix-like manner.
- the sawtooth wire has a tooth root with a bearing edge that extends along the length of the sawtooth wire. This support edge serves as a subsequent support or contact section with the roller onto which the sawtooth wire is to be drawn.
- the sawtooth wire has a row of teeth, which is formed on a tooth side of the tooth base that faces away from the contact edge and is opposite. If the sawtooth wire is stretched out, i.e. neither rolled up on a transport roller nor mounted on a roller, it ideally runs along a straight line. In this state, the row of teeth extends in the longitudinal extension of the sawtooth wire and includes individual teeth. The teeth are arranged one behind the other in a row in the longitudinal extent of the sawtooth wire in such a way that they protrude from the tooth side essentially perpendicularly to the longitudinal extent of the sawtooth wire.
- Each tooth has a tooth tip that points along the length of the sawtooth wire and in a same direction as the tooth tips of the other teeth in the row of teeth. This direction can be parallel to the tooth side or form an acute angle with it, ie point away from the tooth side.
- each tooth has a tooth breast. Starting from the associated tooth tip of the respective tooth, this is designed in such a way that in a first section it extends at an acute angle on the tooth side towards an associated tooth back of the tooth. The first section transitions into a concave second section adjoining its end remote from the tooth tip. Its end remote from the first section points at an acute angle to the tooth side in the direction of the tooth side and away from the associated tooth back.
- the second section merges into a third section which adjoins its end remote from the first section and which extends further towards the tooth side and also away from the associated tooth back.
- the third section merges into a concave fourth section, which adjoins its end remote from the second section and whose end remote from the third section points along the longitudinal extent of the sawtooth wire and away from the associated tooth back.
- the fourth section now transitions into a tooth back of the tooth arranged next in the row of teeth, adjoining its end remote from the third section, ie it borders on this tooth back.
- the length the tangent from the reversal point to the tooth side is greater than or equal to half a distance, seen along the tangent (transverse to the longitudinal extent of the sawtooth wire), between the associated tooth tip and the tooth side.
- the tangent length therefore defines the distance between the reversal point and the tooth side. This results in a tooth tip that is relatively low in relation to the height dimension of the entire tooth. This means that when the sawtooth wire is being pulled on, i.e. when it is pulled onto an associated roller, fiber material that is to be processed (e.g. carded) by means of the teeth can no longer easily get into the spaces between the teeth and remain there.
- the fact that the fourth, concave section merges directly into the tooth back of the next tooth means that this transition point is very small.
- the effect of this is that hardly any fibers can collect there but, due to the rotational speed of the associated roller, are guided almost immediately in the direction of the second section, which is positioned quite high in relation to the roller surface.
- more fiber material is supplied for further processing (e.g. in the form of stretching) than is the case with conventional sawtooth wires. Waste is reduced and with it the number of rejects; the efficiency of a spinning preparation machine equipped with such a sawtooth wire is improved. As a result, the fibers are guided higher in relation to the roll surface.
- the ratio between the length of the second tangent, i.e. the distance from the reversal point to the tooth side, to the aforementioned distance between the tooth tip and the tooth side is 4:5 tooth tip be conveyed when the respective tooth is guided past fiber material with the tooth tip first.
- the second section can correspond to a section of a peripheral line of an ellipse. This creates an edge-free and therefore continuous tooth face in this area. The risk of fibers jamming in this area of the tooth face is averted or at least greatly reduced.
- the ellipse is a circle with a predetermined radius. This is a geometric shape that is particularly easy to produce.
- the radius is preferably smaller than a difference between the length of the second tangent and the aforementioned distance between the tooth tip and the tooth side. This allows the reversal point to be positioned very close to the associated tooth tip, further helping to reduce waste.
- the radius is preferably about 0.07 mm. This has proven to be a very favorable value in terms of fiber intake at the tooth face.
- the wording “approximately” relates to production-related tolerances in relation to the respective reference variable, here the radius.
- the aforementioned distance between the tip of the tooth and the side of the tooth is preferably about 0.5 mm for all sawtooth wires specified above. This is a particularly suitable value in order to be able to process enough fibers.
- the ratio between the peak height i.e. the distance between the tooth side and the tooth tip in a direction transverse to the tooth side or to the longitudinal extent of the sawtooth wire, and a tooth spacing along the longitudinal extent of the sawtooth wire from the tooth tip of a tooth to the tooth tip of the immediately adjacent tooth teeth of the row of teeth 5:17.
- this tooth spacing may be less than about 2 mm, preferably about 1.7 mm or 1.5 mm. These lengths have proven to be particularly favorable with regard to the fibers to be processed, in particular with regard to their length.
- the second tangent and a first tangent applied to the first section at the location of the associated tooth tip preferably enclose a predetermined acute angle in all of the aforementioned sawtooth wires.
- this angle is essentially at least 30° and at most 55°. This angular range allows very efficient fiber treatment.
- the tooth back of a tooth preferably comprises a fifth and a sixth section.
- the fifth section follows the fourth section of the tooth of the row of teeth arranged in front of it and extends away from this fourth section.
- the sixth section in turn now closes to the fifth section at its end remote from the fourth section and extends towards the tooth tip of the associated tooth.
- the fifth and sixth sections enclose acute angles on the tooth side that are different from one another. i.e. Both sections have different slopes in relation to the tooth side in the direction of the tooth tip and thus enable a kind of intermediate reception, but at least a guidance of fibers in the direction of the second section of the tooth face that abuts the tooth back directly in the row of teeth.
- the largest angle between the fifth section and the tooth side is preferably smaller than the largest angle between the sixth section and the tooth side.
- the picked-up fibers are thus released much more slowly or not at all in the direction of the tooth side over the sixth section than the fifth section allows. For example, fibers can be brought into the processing process better due to centrifugal force than would be possible with a section with only one pitch.
- the tooth back can further comprise a seventh section, which adjoins the sixth section at its end remote from the fifth section.
- the seventh section encloses a largest acute angle with the tooth side, which is larger than the largest angle between the sixth section and the tooth side. This creates a kind of step in the area of the sixth section, even if it does not necessarily run parallel to the tooth side and is therefore quasi-horizontal.
- the tooth tip of the associated tooth thus protrudes further from the tooth side than the sixth section and can thus be optimized for the extraction of fibers, while the seventh section and the second section are each attached to the sixth Section adjoining tooth face can be optimized for guiding and discharging unwanted fibers.
- the tooth back preferably comprises an eighth section, which adjoins the seventh section at its end remote from the sixth section.
- This eighth section encloses a largest acute angle with the tooth side, which is smaller than the largest angle between the seventh section and the tooth side. This creates a kind of hump between the tooth tip and the seventh section, which has a similar effect to the fibers as the sixth section.
- the transition area between at least two directly adjacent sections and/or the transition area between the respective fourth section and the adjoining tooth back can be continuous. i.e. In the extreme case, there are no discontinuous transitions between two immediately adjacent tooth tips that would allow or promote the adhesion of fibers and thus negatively influence the effect of the sawtooth wire.
- FIG. 12 shows a saw-tooth wire 1 according to a first embodiment of the invention in side view when the saw-tooth wire 1 is stretched out.
- Figure 1b shows the sawtooth wire 1 in section along a line AA in Figure 1a.
- Figure 1c again shows the in Figure 1a The area surrounded by a square is enlarged in detail.
- the sawtooth wire 1 has one in Figure 1a and Figure 1b lower area a tooth base 2, on the upper side of which a row of teeth is formed.
- the row of teeth essentially consists of several teeth arranged in a row one behind the other 3.
- the tooth base 2 has an underside that serves as a bearing edge 4 for the roller, not shown, onto which the sawtooth wire 1 is to be mounted.
- the side of the tooth root 2 facing the teeth 3 forms a tooth side 5.
- the tooth side 5 is designed in such a way that it transitions from the right-hand edge of the tooth base 2 in the direction of the tooth 3 .
- the teeth 3 have, in a known manner, a tooth back 10 and a tooth face 20 which meet at one end at a tooth tip 6 of the respective tooth 3 and at the other end in the tooth face 20 of the immediately in front of it arranged tooth 3 or the tooth back 10 of the tooth 3 arranged immediately thereafter.
- the tooth root 2 is formed from a material that allows the sawtooth wire 1 to be drawn onto an associated roller. For this purpose, it has a predetermined height hF .
- the back of the tooth 10 of the respective tooth 3 begins, starting from the tooth face 20 of the one in front of it, i.e. in Figure 1a left of it, arranged tooth 3 with a portion 11 which is formed in relation to the tooth side 5 in the direction of tooth tip 6 increasing.
- the section 11 runs at an acute angle to the tooth side 5 towards the tooth tip 6 .
- a section 12 of the tooth back 10 connects to this section 11 .
- the section 12 runs flatter in relation to the tooth side 5 or even parallel to it.
- section 12 merges into a next section 13 , which is designed to be steeper than section 12 and, for example, flatter than section 11 .
- section 13 At its end remote from section 12, section 13 in turn opens into what is now the last section 14 of tooth back 10.
- the end of section 14 remote from section 13 forms, in conjunction with an adjoining section 21 of tooth face 20, tooth tip 6.
- the section 21 extends away from the tooth tip 6 towards the tooth side 5 and the tooth back 10 of the same tooth 3.
- the essentially straight section 21 transitions at its end remote from the tooth tip 6 into a section 22 which, in the example shown, follows the circumference of a circle with a predetermined radius.
- the radius is approximately 0.07 mm, for example.
- the transition between sections 21 and 22 is preferably continuous designed. This has the advantage that fibers located there can move past the tooth face 20 without the risk of jamming.
- section 22 merges into a subsequent section 23.
- this is preferably straight, similar to section 21 . It extends to the side of the tooth 5 and to the back of the tooth 10 of the following tooth 3 . This results in a sloping area in relation to the tooth base 2 .
- the section 23 transitions at its end remote from the section 22 into a concave section 24 which, at its end remote from the section 23, adjoins the tooth back 10 of the immediately following tooth 3.
- the section 24 has a minimal distance to the tooth side 5 in relation to the rest of the tooth 3, which is sufficient to lay the sawtooth wire 1 around a roller. To do this, it is necessary to bend the sawtooth wire 1 in such a way that the in figure 1 straight bearing edge 4 rests firmly on the outer circumference of the roller at all points. This minimum distance is preferably 0.1 mm.
- Section 22 has at its in figure 1 at the point furthest to the left, perpendicular to the tooth side 5, has a distance or a height hu, which is 0.5 mm, for example. In relation to the tooth side 5, this point is therefore significantly higher than half a distance or a height hz of the tooth tip 6 to the tooth side 5. This distance thus corresponds to the length of a tangent (vertical dot-dash line) that can be applied at this point and perpendicular to the tooth side 5 runs.
- a tooth tip distance az between the tooth tips 6 of two immediately consecutive teeth, ie the pitch, is shown in FIG Example less than about 2 mm, preferably about 1.7 mm or 1.5 mm with a tolerance of +0.06 mm to -0.03 mm.
- a length I R of the respective tooth back 10 along the longitudinal extent of the sawtooth wire 1 when stretched out, ie along the tooth side 5, is, for example, more than half of the aforementioned tooth tip spacing az.
- a tangent applied to the section 21 in the region of the tooth tip 6 encloses a predetermined angle ⁇ with a line which is perpendicular to the tooth side 5 and intersects the tooth tip 6 .
- the angle ⁇ is 55° and is therefore just as large as a corresponding angle between this tangent and the aforementioned tangent applied to the reversal point in section 22 .
- the root of the tooth 2 in Figure 1b can of course also point to the left, so that the sawtooth wire 1 is mirrored along a vertical line in this figure.
- figure 2 12 shows a sawtooth wire 1 according to a second embodiment of the invention.
- the tooth back 10 has only three sections 11-13 here instead of four. Sections 11-13 are similar to sections 11-13 of the first embodiment, section 14 is missing. The result is that a tangent applied to section 13 and intersecting the tooth tip 6 encloses a larger acute angle ⁇ with the tooth side 5 than with the first embodiment of the invention.
- the angle ⁇ is the same as the first embodiment, for example.
- figure 3 12 shows a sawtooth wire 1 according to a third embodiment of the invention.
- the section 11 is a concave section which, at its end remote from the previous tooth 3, merges into a section 12 which is connected by means of a rising plane with respect to the tooth side 5 is formed.
- the adjoining section 13, which extends to the tooth tip 6 is preferably designed like the section 14 of the first embodiment of the invention. i.e. here the section 12 present in the first embodiment is missing.
- the section 21 runs steeper than in the second embodiment. As a result, the angle ⁇ is comparatively smaller and is 40° in the example shown.
- figure 4 12 shows a sawtooth wire 1 according to a fourth embodiment of the invention.
- the section 13 is shorter.
- figure 5 12 shows a sawtooth wire 1 according to a fifth embodiment of the invention.
- section 13 is made substantially longer than in the previous embodiments. This leads to a longer dwelling of the respective fiber in the upper area of the sawtooth wire 1 and thus reduces the risk of fibers being able to accumulate in the area of the section 11 .
- section 24 is made shorter than in the previous embodiments.
- the invention is not limited to the prescribed embodiments.
- tooth face 20 and tooth back 10 described above, or their sections 11-14; 21 - 24, can be combined with each other or interchanged in any way.
- the second and the fifth embodiment can be combined with one another in such a way that the tooth backs 10 are terraced.
- the aforementioned radius at section 22 can also assume a different value.
- the section 22 can also correspond to a partial circumference line of a non-circular ellipse.
- the invention creates a sawtooth wire 1 that is particularly suitable for drums and effectively prevents fibers from accumulating in the lower area, ie in the area between tooth face 20 and tooth back 10 of two consecutive teeth 3 . i.e. the fibers are kept in bulk farther away from the tooth side 5 and closer to the respective tooth tip 6.
- This has a particularly favorable effect that the fibers of the Sawtooth wire 1 can be removed from a corresponding roll. In particular during carding, the fibers can thus be better fed to the receiving roller, which improves the efficiency of the spinning preparation machine provided with the sawtooth wire 1 .
- a further advantage is that the sawtooth wire according to the invention makes it easier for the fibers to be fed to other elements which interact with the sawtooth wire, such as covers and strips.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Die Erfindung betrifft einen Sägezahndraht für Walzen von Spinnereivorbereitungsmaschinen, wie Karden, insbesondere einen Sägezahndraht für einen Tambour.The invention relates to a sawtooth wire for rollers of spinning preparation machines, such as cards, in particular a sawtooth wire for a spool.
Solche Sägezahndrähte werden üblicherweise als Strangmaterial hergestellt, gegebenenfalls auf Transportrollen aufgerollt und zur Verwendung schraubenlinien- bzw. wendelartig entlang eines Außenumfangs einer korrespondierenden Walze, beispielsweise eine Tambourwalze, aufgezogen. Derartig gebildete Walzen werden für verschiedenste Zwecke genutzt. Es gibt Reinigungswalzen, ausgerichtet, ankommendes Fasermaterial von Verunreinigungen, wie beispielsweise Baumwollkapselmaterial, zu trennen. Andere Sägezahndrähte wiederum sind ausgerichtet, Fasern zu lösen und zu parallelisieren, wie dies beispielsweise bei Tambourwalzen von Karden der Fall ist. Bei in einer Verarbeitungskette zwischengelagerten Walzen besteht die Notwendigkeit, Fasermaterial von einer vorgelagerten Stelle abnehmen und an eine nachgelagerte Stelle abgeben zu müssen, und dies mit möglichst hoher Geschwindigkeit. Dies ist beispielsweise bei Tambourwalzen der Fall, die vorgesehen sind, Fasermaterial von einer Vorreißerwalze abzunehmen und an eine Abnehmerwalze abzugeben. Dabei hat sich herausgestellt, dass bei den bekannten Sägezahndrähten zu viel Fasermaterial in Richtung Walze gelangt und so nicht oder nur in ungenügendem Maße an die nachgelagerte Stelle abgegeben wird. Ein tiefster Bereich zwischen zwei Zähnen, in der Regel der Übergangsbereich zwischen Zahnbrust eines Zahns und Zahnrücken des nächsten Zahns (nachstehend mit Zahnzwischenraum bezeichnet) in der Zahnreihe des Sägezahndrahts, hat, quer zur Längserstreckung des Sägezahndrahts gesehen, wenn ausgestreckt, einen Abstand zu einer Auflagefläche des Sägezahndrahts auf der Walze, der ausreichend klein ist, den Sägezahndraht so biegen zu können, um diesen um die zugehörige Walze, wie vorstehend beschrieben, herum zu legen und so auf diese Walze aufzuziehen. Im Betrieb neigen Fasern dazu, sich in diesem Übergangsbereich anzusammeln und so zu bewirken, dass an sich verwendbares Fasermaterial nicht zur Weiterverarbeitung gelangt, also beispielsweise nicht von einer abnehmenden Walze abgenommen wird. HerkömmlicheSuch sawtooth wires are usually produced as strand material, optionally rolled up on transport rollers and, for use, drawn helically or helically along an outer circumference of a corresponding roller, for example a tambour roller. Rollers formed in this way are used for a wide variety of purposes. There are cleaning rollers designed to separate incoming fibrous material from impurities such as cotton boll material. Other sawtooth wires, on the other hand, are designed to loosen fibers and parallelize them, as is the case, for example, with the tambour rollers of cards. In the case of intermediate rollers in a processing chain, there is a need to remove fiber material from an upstream location and deliver it to a downstream location, and to do this at the highest possible speed. This is the case, for example, with tambour rollers, which are intended to remove fiber material from a take-in roller and deliver it to a take-off roller. It has been found that in the case of the known sawtooth wires, too much fiber material gets in the direction of the roller and is thus not delivered to the downstream location, or only to an insufficient extent. A deepest area between two teeth, usually the transition area between the tooth face of one tooth and the tooth back of the next tooth (hereinafter referred to as the tooth gap) in the row of teeth of the sawtooth wire, has transverse to the longitudinal extent of the sawtooth wire seen when stretched out, a distance from a bearing surface of the sawtooth wire on the roller which is sufficiently small to be able to bend the sawtooth wire so that it can be wound around the associated roller as described above and so mounted on that roller. During operation, fibers tend to accumulate in this transition area and thus have the effect that fiber material that can be used per se does not reach further processing, ie, for example, is not removed from a removing roller. conventional
Sägezahndrähte sind aus
Aufgabe der Erfindung ist es, diesen Nachteil zumindest zu verringern. Diese Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.The object of the invention is to at least reduce this disadvantage. This object is solved by the subject matter of claim 1. Advantageous developments of the invention are specified in the dependent claims.
Erfindungsgemäß ist ein Sägezahndraht vorgesehen, der eingerichtet ist, auf eine Walze einer Spinnereivorbereitungsmaschine entlang eines Außenumfangs der Walze und im Wesentlichen quer zu deren Rotationsachse schrauben- bzw. wendelartig aufgezogen zu werden. Der Sägezahndraht wird in bekannter Weise vorzugsweise als Strangmaterial hergestellt, beispielsweise auf eine Transportrolle gerollt und beim Aufziehen auf eine Walze auf deren Außenumfang schraubenlinien- bzw. wendelartig aufgezogen. Der Sägezahndraht weist einen Zahnfuß mit einem Auflagerand auf, der sich entlang der Längserstreckung des Sägezahndrahts erstreckt. Dieser Auflagerand dient als späterer Auflage- bzw. Kontaktabschnitt mit der Walze, auf die der Sägezahndraht aufgezogen werden soll. Ferner weist der Sägezahndraht eine Zahnreihe auf, die an einer dem Auflagerand abgewandten und gegenüberliegenden Zahnseite des Zahnfußes ausgebildet ist. Ist der Sägezahndraht ausgestreckt, also weder auf eine Transportrolle aufgerollt noch auf eine Walze aufgezogen, verläuft er idealerweise entlang einer geraden Linie. In diesem Zustand erstreckt sich die Zahnreihe in Längserstreckung des Sägezahndrahts und umfasst einzelne Zähne. Die Zähne sind in Längserstreckung des Sägezahndrahts hintereinanderliegend in einer Reihe derart angeordnet, dass sie von der Zahnseite im Wesentlichen senkrecht zur Längserstreckung des Sägezahndrahts hervorstehen. Jeder Zahn hat eine Zahnspitze, die entlang der Längserstreckung des Sägezahndrahts und in eine gleiche Richtung wie die Zahnspitzen der anderen Zähne der Zahnreihe weist. Dabei kann diese Richtung parallel zur Zahnseite liegen oder mit dieser einen spitzen Winkel einschließen, also von der Zahnseite weg weisen. Ferner hat jeder Zahn eine Zahnbrust. Diese ist, ausgehend von der zugehörigen Zahnspitze des jeweiligen Zahns, so ausgebildet, dass sie sich in einem ersten Abschnitt in einem spitzen Winkel auf die Zahnseite zu einem zugehörigen Zahnrücken des Zahns hin erstreckt. Der erste Abschnitt geht in einen sich an sein der Zahnspitze entferntes Ende anschließenden konkaven, zweiten Abschnitt über. Dessen dem ersten Abschnitt entferntes Ende weist in einem spitzen Winkel zur Zahnseite in Richtung Zahnseite und vom zugehörigen Zahnrücken weg. Der zweite Abschnitt wiederum geht in einen sich an sein dem ersten Abschnitt entferntes Ende anschließenden, dritten Abschnitt über, der sich weiter zur Zahnseite hin und ebenfalls vom zugehörigen Zahnrücken weg erstreckt. Der dritte Abschnitt geht in einen sich an sein dem zweiten Abschnitt entferntes Ende anschließenden konkaven, vierten Abschnitt, über, dessen dem dritten Abschnitt entferntes Ende entlang der Längserstreckung des Sägezahndrahts und vom zugehörigen Zahnrücken weg weist. Der vierte Abschnitt nun geht in einen sich an sein dem dritten Abschnitt entferntes Ende anschließenden Zahnrücken des darauffolgend in der Zahnreihe angeordneten Zahns über, grenzt also an diesen Zahnrücken an. Ferner gibt es eine Umkehrstelle im vorgenannten zweiten Abschnitt, an der eine an den zweiten Abschnitt angelegte zweite Tangente senkrecht zur Zahnseite verläuft. Die Länge der Tangente von der Umkehrstelle zur Zahnseite ist größer als oder gleich einem halben Abstand, entlang der Tangente (quer zur Längserstreckung des Sägezahndrahts) gesehen, zwischen der zugehörigen Zahnspitze und der Zahnseite. Die Tangentenlänge definiert mithin den Abstand zwischen der Umkehrstelle und der Zahnseite. Dadurch entsteht eine in Bezug auf die Höhenabmessung des gesamten Zahns relativ niedrige Zahnspitze. Dies führt dazu, dass im Aufziehzustand des Sägezahndrahts, wenn dieser also auf eine zugehörige Walze aufgezogen ist, Fasermaterial, das mittels der Zähne zu verarbeiten (beispielsweise zu kardieren) ist, nicht mehr so leicht in die Zahnzwischenräume gelangen und dort verbleiben kann. Insbesondere führt der Umstand, dass der vierte, konkave Abschnitt direkt in den Zahnrücken des nächsten Zahns übergeht, dazu, dass diese Übergangsstelle sehr klein ausfällt. Dies bewirkt, dass sich dort kaum Fasern sammeln können sondern aufgrund der Rotationsgeschwindigkeit der zugehörigen Walze quasi sofort in Richtung des in Bezug auf die Walzenoberfläche ziemlich hoch gelagerten zweiten Abschnitts geführt werden. Dadurch wird mehr Fasermaterial der weiteren Verarbeitung (beispielsweise in Form eines Verstreckens) zugeführt als es bei herkömmlichen Sägezahndrähten der Fall ist. Der Abfall verringert sich und damit einhergehend der Ausschuss; die Effizienz einer mit solch einem Sägezahndraht ausgestatteten Spinnereivorbereitungsmaschine ist verbessert. Im Ergebnis werden die Fasern in Bezug auf die Walzenoberfläche höher geführt.According to the invention, a sawtooth wire is provided which is set up to be drawn helically or helically onto a roller of a spinning preparation machine along an outer circumference of the roller and essentially transversely to its axis of rotation. The sawtooth wire is preferably produced in a known manner as a strand material, for example rolled onto a transport roller and, when being pulled onto a roller, is drawn on the outer circumference in a helical or helix-like manner. The sawtooth wire has a tooth root with a bearing edge that extends along the length of the sawtooth wire. This support edge serves as a subsequent support or contact section with the roller onto which the sawtooth wire is to be drawn. Furthermore, the sawtooth wire has a row of teeth, which is formed on a tooth side of the tooth base that faces away from the contact edge and is opposite. If the sawtooth wire is stretched out, i.e. neither rolled up on a transport roller nor mounted on a roller, it ideally runs along a straight line. In this state, the row of teeth extends in the longitudinal extension of the sawtooth wire and includes individual teeth. The teeth are arranged one behind the other in a row in the longitudinal extent of the sawtooth wire in such a way that they protrude from the tooth side essentially perpendicularly to the longitudinal extent of the sawtooth wire. Each tooth has a tooth tip that points along the length of the sawtooth wire and in a same direction as the tooth tips of the other teeth in the row of teeth. This direction can be parallel to the tooth side or form an acute angle with it, ie point away from the tooth side. Furthermore, each tooth has a tooth breast. Starting from the associated tooth tip of the respective tooth, this is designed in such a way that in a first section it extends at an acute angle on the tooth side towards an associated tooth back of the tooth. The first section transitions into a concave second section adjoining its end remote from the tooth tip. Its end remote from the first section points at an acute angle to the tooth side in the direction of the tooth side and away from the associated tooth back. The second section, in turn, merges into a third section which adjoins its end remote from the first section and which extends further towards the tooth side and also away from the associated tooth back. The third section merges into a concave fourth section, which adjoins its end remote from the second section and whose end remote from the third section points along the longitudinal extent of the sawtooth wire and away from the associated tooth back. The fourth section now transitions into a tooth back of the tooth arranged next in the row of teeth, adjoining its end remote from the third section, ie it borders on this tooth back. There is also a reversal point in the aforementioned second section, at which a second tangent applied to the second section runs perpendicularly to the tooth side. The length the tangent from the reversal point to the tooth side is greater than or equal to half a distance, seen along the tangent (transverse to the longitudinal extent of the sawtooth wire), between the associated tooth tip and the tooth side. The tangent length therefore defines the distance between the reversal point and the tooth side. This results in a tooth tip that is relatively low in relation to the height dimension of the entire tooth. This means that when the sawtooth wire is being pulled on, i.e. when it is pulled onto an associated roller, fiber material that is to be processed (e.g. carded) by means of the teeth can no longer easily get into the spaces between the teeth and remain there. In particular, the fact that the fourth, concave section merges directly into the tooth back of the next tooth means that this transition point is very small. The effect of this is that hardly any fibers can collect there but, due to the rotational speed of the associated roller, are guided almost immediately in the direction of the second section, which is positioned quite high in relation to the roller surface. As a result, more fiber material is supplied for further processing (e.g. in the form of stretching) than is the case with conventional sawtooth wires. Waste is reduced and with it the number of rejects; the efficiency of a spinning preparation machine equipped with such a sawtooth wire is improved. As a result, the fibers are guided higher in relation to the roll surface.
Vorzugsweise beträgt das Verhältnis zwischen der Länge der zweiten Tangente, also dem Abstand der Umkehrstelle zur Zahnseite, zum vorgenannten Abstand zwischen Zahnspitze und Zahnseite 4 : 5. Dadurch gelangt mehr Fasermaterial in den vorgenannten dritten Abschnitt und kann von diesem in Richtung zweiten Abschnitt nahe der zugehörigen Zahnspitze befördert werden, wenn der jeweilige Zahn mit der Zahnspitze voran an Fasermaterial vorbeigeführt wird.Preferably, the ratio between the length of the second tangent, i.e. the distance from the reversal point to the tooth side, to the aforementioned distance between the tooth tip and the tooth side is 4:5 tooth tip be conveyed when the respective tooth is guided past fiber material with the tooth tip first.
Der zweite Abschnitt kann in den vorgenannten Fällen einem Abschnitt einer Umfangslinie einer Ellipse entsprechen. Dadurch entsteht eine kantenfreie und damit kontinuierlich verlaufende Zahnbrust in diesem Bereich. Die Gefahr eines Verklemmens von Fasern in diesem Bereich der Zahnbrust ist gebannt oder zumindest stark verringert.In the aforementioned cases, the second section can correspond to a section of a peripheral line of an ellipse. This creates an edge-free and therefore continuous tooth face in this area. The risk of fibers jamming in this area of the tooth face is averted or at least greatly reduced.
Vorzugsweise ist die Ellipse ein Kreis mit einem vorbestimmten Radius. Dies ist eine besonders einfach herzustellende geometrische Form.Preferably, the ellipse is a circle with a predetermined radius. This is a geometric shape that is particularly easy to produce.
Der Radius ist vorzugsweise kleiner als eine Differenz zwischen der Länge der zweiten Tangente und dem vorgenannten Abstand zwischen Zahnspitze und Zahnseite. Dies ermöglicht, die Umkehrstelle sehr nahe der zugehörigen Zahnspitze zu positionieren, was den Abfall weiter verringern hilft.The radius is preferably smaller than a difference between the length of the second tangent and the aforementioned distance between the tooth tip and the tooth side. This allows the reversal point to be positioned very close to the associated tooth tip, further helping to reduce waste.
Der Radius beträgt in beiden Fällen vorzugsweise etwa 0,07 mm. Dies hat sich als ein sehr günstiger Wert hinsichtlich der Faseraufnahme an der Zahnbrust erwiesen. Die Formulierung "etwa" bezieht sich im Rahmen der Erfindung auf herstellungsbedingte Toleranzen in Bezug auf die jeweilige Bezugsgröße, hier den Radius.In both cases, the radius is preferably about 0.07 mm. This has proven to be a very favorable value in terms of fiber intake at the tooth face. In the context of the invention, the wording “approximately” relates to production-related tolerances in relation to the respective reference variable, here the radius.
Der vorgenannte Abstand zwischen Zahnspitze und Zahnseite beträgt bei allen vorstehend angegebenen Sägezahndrähten vorzugsweise etwa 0,5 mm. Dies ist ein besonders geeigneter Wert, um genügend Fasern verarbeiten zu können.The aforementioned distance between the tip of the tooth and the side of the tooth is preferably about 0.5 mm for all sawtooth wires specified above. This is a particularly suitable value in order to be able to process enough fibers.
Bei den vorstehend angegebenen Varianten kann das Verhältnis zwischen Spitzenhöhe, also dem Abstand zwischen Zahnseite und Zahnspitze in einer Richtung quer zur Zahnseite bzw. zur Längserstreckung des Sägezahndrahts, und einem Zahnabstand entlang der Längserstreckung des Sägezahndrahts von der Zahnspitze eines Zahns zur Zahnspitze des unmittelbar benachbart angeordneten Zahns der Zahnreihe 5 : 17 betragen. Es entsteht dabei ein für den Betrieb sehr günstiges Verhältnis der Zahnhöhe (Höhe ohne Zahnfuß) zum Abstand zwischen zwei unmittelbar benachbart angeordneten Sägezahndrahtzähnen.In the variants specified above, the ratio between the peak height, i.e. the distance between the tooth side and the tooth tip in a direction transverse to the tooth side or to the longitudinal extent of the sawtooth wire, and a tooth spacing along the longitudinal extent of the sawtooth wire from the tooth tip of a tooth to the tooth tip of the immediately adjacent tooth teeth of the row of teeth 5:17. This results in a ratio of the tooth height (height without tooth base) to the distance between two immediately adjacent sawtooth wire teeth that is very favorable for operation.
Dieser Zahnabstand kann mit oder ohne Einhaltung des Verhältnisses von 5 : 17 weniger als etwa 2 mm, vorzugsweise etwa 1,7 mm oder 1,5 mm, betragen. Diese Längen haben sich als besonders günstig in Bezug auf die zu verarbeitenden Fasern insbesondere in Bezug auf deren Länge erwiesen.With or without maintaining the 5:17 ratio, this tooth spacing may be less than about 2 mm, preferably about 1.7 mm or 1.5 mm. These lengths have proven to be particularly favorable with regard to the fibers to be processed, in particular with regard to their length.
Die zweite Tangente und eine an den ersten Abschnitt an der Stelle der zugehörigen Zahnspitze angelegte erste Tangente schließen bei allen vorgenannten Sägezahndrähten vorzugsweise einen vorbestimmten spitzen Winkel ein.The second tangent and a first tangent applied to the first section at the location of the associated tooth tip preferably enclose a predetermined acute angle in all of the aforementioned sawtooth wires.
Dieser Winkel beträgt erfindungsgemäß im Wesentlichen wenigstens 30° und höchstens 55°. Dieser Winkelbereich erlaubt eine sehr effiziente Faserbehandlung.According to the invention, this angle is essentially at least 30° and at most 55°. This angular range allows very efficient fiber treatment.
Bei jedem der vorgenannten Sägezahndrähte umfasst der Zahnrücken eines Zahns vorzugsweise einen fünften und einen sechsten Abschnitt. Der fünfte Abschnitt schließt sich an den vierten Abschnitt des jeweils davor angeordneten Zahns der Zahnreihe an und erstreckt sich von diesem vierten Abschnitt weg. Der sechste Abschnitt wiederum schließt sich nunmehr an den fünften Abschnitt an dessen dem vierten Abschnitt entfernten Ende an und erstreckt sich auf die Zahnspitze des zugehörigen Zahns zu. Schließlich schließen der fünfte und der sechste Abschnitt mit der Zahnseite spitze und zueinander verschiedene größte Winkel ein. D. h. beide Abschnitte haben zueinander in Bezug auf die Zahnseite verschieden starke Anstiege in Richtung Zahnspitze und ermöglichen so eine Art Zwischenaufnahme, zumindest aber eine Führung von Fasern in Richtung zweiten Abschnitt der jeweils unmittelbar in der Zahnreihe an den Zahnrücken anstoßenden Zahnbrust.In each of the aforementioned sawtooth wires, the tooth back of a tooth preferably comprises a fifth and a sixth section. The fifth section follows the fourth section of the tooth of the row of teeth arranged in front of it and extends away from this fourth section. The sixth section in turn now closes to the fifth section at its end remote from the fourth section and extends towards the tooth tip of the associated tooth. Finally, the fifth and sixth sections enclose acute angles on the tooth side that are different from one another. i.e. Both sections have different slopes in relation to the tooth side in the direction of the tooth tip and thus enable a kind of intermediate reception, but at least a guidance of fibers in the direction of the second section of the tooth face that abuts the tooth back directly in the row of teeth.
Der größte Winkel zwischen dem fünften Abschnitt und der Zahnseite ist dabei vorzugsweise kleiner als der größte Winkel zwischen dem sechsten Abschnitt und der Zahnseite. Die aufgenommenen Fasern werden somit über den sechsten Abschnitt hinweg wesentlich langsamer oder gar nicht in Richtung Zahnseite gelassen, als es der fünfte Abschnitt erlaubt. So können Fasern besser in den Verarbeitungsprozess beispielsweise aufgrund der Fliehkraft hinein gebracht werden, als es mit einem Abschnitt mit nur einer Steigung möglich wäre.The largest angle between the fifth section and the tooth side is preferably smaller than the largest angle between the sixth section and the tooth side. The picked-up fibers are thus released much more slowly or not at all in the direction of the tooth side over the sixth section than the fifth section allows. For example, fibers can be brought into the processing process better due to centrifugal force than would be possible with a section with only one pitch.
Zusätzlich oder alternativ kann der Zahnrücken ferner einen siebten Abschnitt umfassen, der sich an den sechsten Abschnitt an dessen dem fünften Abschnitt entfernten Ende anschließt. Der siebte Abschnitt schließt dabei mit der Zahnseite einen größten spitzen Winkel ein, der größer ist als der größte Winkel zwischen dem sechsten Abschnitt und der Zahnseite. Somit entsteht im Bereich des sechsten Abschnitts eine Art Treppenstufe, auch wenn diese nicht unbedingt parallel zur Zahnseite und damit quasi horizontal verläuft. Damit steht die Zahnspitze des zugehörigen Zahns weiter von der Zahnseite hervor als der sechste Abschnitt und kann damit auf das Herausziehen von Fasern hin optimiert werden, während der siebte Abschnitt und der zweite Abschnitt der jeweils an den sechsten Abschnitt angrenzenden Zahnbrust für das Leiten und Abführen nicht erwünschter Fasern hin optimiert werden kann.Additionally or alternatively, the tooth back can further comprise a seventh section, which adjoins the sixth section at its end remote from the fifth section. The seventh section encloses a largest acute angle with the tooth side, which is larger than the largest angle between the sixth section and the tooth side. This creates a kind of step in the area of the sixth section, even if it does not necessarily run parallel to the tooth side and is therefore quasi-horizontal. The tooth tip of the associated tooth thus protrudes further from the tooth side than the sixth section and can thus be optimized for the extraction of fibers, while the seventh section and the second section are each attached to the sixth Section adjoining tooth face can be optimized for guiding and discharging unwanted fibers.
Vorzugsweise umfasst der Zahnrücken zudem einen achten Abschnitt, der sich an den siebten Abschnitt an dessen dem sechsten Abschnitt entfernten Ende anschließt. Dieser achte Abschnitt schließt mit der Zahnseite einen größten spitzen Winkel ein, der kleiner ist als der größte Winkel zwischen dem siebten Abschnitt und der Zahnseite. Dadurch entsteht zwischen der Zahnspitze und dem siebten Abschnitt eine Art Buckel, der hinsichtlich der Fasern eine ähnliche Wirkung wie der sechste Abschnitt hat.In addition, the tooth back preferably comprises an eighth section, which adjoins the seventh section at its end remote from the sixth section. This eighth section encloses a largest acute angle with the tooth side, which is smaller than the largest angle between the seventh section and the tooth side. This creates a kind of hump between the tooth tip and the seventh section, which has a similar effect to the fibers as the sixth section.
Bei jedem der vorgenannten Sägezahndrähte kann bzw. können der Übergangsbereich zwischen zumindest zwei einander unmittelbar benachbarten Abschnitten und/oder der Übergangsbereich zwischen dem jeweils vierten Abschnitt und dem sich daran anschließenden Zahnrücken kontinuierlich gestaltet sein. D. h. im Extremfall gibt es zwischen zwei unmittelbar benachbart angeordneten Zahnspitzen keine diskontinuierlichen Übergänge, die ein Anhaften von Fasern ermöglichen oder fördern und damit die Wirkung des Sägezahndrahts negativ beeinflussen könnten.In each of the aforementioned sawtooth wires, the transition area between at least two directly adjacent sections and/or the transition area between the respective fourth section and the adjoining tooth back can be continuous. i.e. In the extreme case, there are no discontinuous transitions between two immediately adjacent tooth tips that would allow or promote the adhesion of fibers and thus negatively influence the effect of the sawtooth wire.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsformen. Es zeigen:
- Figur 1
- einen Sägezahndraht gemäß einer ersten Ausführungsform der Erfindung in verschiedenen Ansichten,
Figur 2- einen Sägezahndraht gemäß einer zweiten Ausführungsform der Erfindung,
Figur 3- einen Sägezahndraht gemäß einer dritten Ausführungsform der Erfindung,
Figur 4- einen Sägezahndraht gemäß einer vierten Ausführungsform der Erfindung und
Figur 5- einen Sägezahndraht gemäß einer fünften Ausführungsform der Erfindung.
- figure 1
- a sawtooth wire according to a first embodiment of the invention in different views,
- figure 2
- a sawtooth wire according to a second embodiment of the invention,
- figure 3
- a sawtooth wire according to a third embodiment of the invention,
- figure 4
- a sawtooth wire according to a fourth embodiment of the invention and
- figure 5
- a sawtooth wire according to a fifth embodiment of the invention.
Der Sägezahndraht 1 hat in einem in
Der Zahnfuß 2 weist eine Unterseite auf, die als Auflagerand 4 für die nicht abgebildete Walze dient, auf die der Sägezahndraht 1 aufzuziehen ist. Die den Zähnen 3 zugewandte Seite des Zahnfußes 2 bildet eine Zahnseite 5. Wie in
Die Zähne 3 weisen in bekannter Weise einen Zahnrücken 10 sowie eine Zahnbrust 20 auf, die sich einerends an einer Zahnspitze 6 des jeweiligen Zahns 3 treffen und anderenends in die Zahnbrust 20 des unmittelbar davor angeordneten Zahns 3 bzw. den Zahnrücken 10 des unmittelbar danach angeordneten Zahns 3 übergehen.The
Der Zahnfuß 2 ist aus einem Material gebildet, das es erlaubt, den Sägezahndraht 1 auf eine zugehörige Walze aufzuziehen. Dazu weist er eine vorbestimmte Höhe hF auf.The
Der Zahnrücken 10 des jeweiligen Zahns 3 beginnt, ausgehend von der Zahnbrust 20 des jeweils davor, also in
Ausgehend von der Zahnspitze 6, erstreckt sich der Abschnitt 21 von der Zahnspitze 6 weg auf die Zahnseite 5 und den Zahnrücken 10 desselben Zahns 3 zu. Der im Wesentlichen gerade verlaufende Abschnitt 21 geht an seinem der Zahnspitze 6 entfernten Ende in einen Abschnitt 22 über, der im gezeigten Beispiel der Umfangslinie eines Kreises mit einem vorbestimmten Radius folgt. Der Radius beträgt beispielhaft etwa 0,07 mm. Der Übergang zwischen den Abschnitten 21 und 22 ist vorzugsweise kontinuierlich gestaltet. Dies hat den Vorteil, dass sich dort befindliche Fasern ohne die Gefahr eines Klemmens an der Zahnbrust 20 vorbei bewegen können.Starting from the
An einem unteren, dem Abschnitt 21 entfernten Ende geht der Abschnitt 22 in einen nachfolgenden Abschnitt 23 über. Dieser ist im gezeigten Beispiel vorzugsweise ähnlich dem Abschnitt 21 gerade ausgeführt. Er erstreckt sich zur Zahnseite 5 sowie zum Zahnrücken 10 des nachfolgenden Zahns 3 hin. Es ergibt sich somit ein in Bezug auf den Zahnfuß 2 abfallender Bereich. Der Abschnitt 23 geht an seinem dem Abschnitt 22 entfernten Ende in einen konkaven Abschnitt 24 über, der an seinem dem Abschnitt 23 entfernten Ende an den Zahnrücken 10 des unmittelbar nachfolgenden Zahns 3 angrenzt. Der Abschnitt 24 hat einen in Bezug auf den sonstigen Zahn 3 minimalen Abstand zur Zahnseite 5, der ausreicht, den Sägezahndraht 1 um eine Walze herum zu legen. Dazu ist es notwendig, den Sägezahndraht 1 so zu verbiegen, dass der in
Der Abschnitt 22 weist an seinem in
Ein Zahnspitzenabstand az zwischen den Zahnspitzen 6 zweier unmittelbar aufeinanderfolgender Zähne, also die Teilung, beträgt im gezeigten Beispiel weniger als etwa 2 mm, bevorzugt etwa 1,7 mm oder 1,5 mm mit einer Toleranz von +0,06 mm bis -0,03 mm.A tooth tip distance az between the
Eine Länge IR des jeweiligen Zahnrückens 10 entlang der Längserstreckung des Sägezahndrahts 1, wenn ausgestreckt, d. h. entlang der Zahnseite 5, beträgt beispielhaft mehr als die Hälfte des vorgenannten Zahnspitzenabstands az.A length I R of the respective tooth back 10 along the longitudinal extent of the sawtooth wire 1 when stretched out, ie along the
Eine im Bereich der Zahnspitze 6 an den Abschnitt 21 angelegte Tangente schließt mit einer senkrecht auf der Zahnseite 5 stehenden und die Zahnspitze 6 schneidenden Linie einen vorbestimmten Winkel α ein. Der Winkel α beträgt im gezeigten Beispiel 55° und ist demnach genauso groß wie ein entsprechender Winkel zwischen dieser Tangente und der vorgenannten, an die Umkehrstelle im Abschnitt 22 angelegten Tangente.A tangent applied to the
Der Zahnfuß 2 in
Hier ist der Abschnitt 13 wesentlich länger ausgebildet als bei den vorherigen Ausführungsformen. Dies führt zu einem längeren Verweilen der jeweiligen Faser im oberen Bereich des Sägezahndrahts 1 und verringert somit die Gefahr, dass sich Fasern im Bereich des Abschnitts 11 ansammeln können.Here the
Zusätzlich ist der Abschnitt 24 kürzer ausgebildet als bei den vorhergehenden Ausführungsformen.In addition, the
Die Erfindung ist nicht auf die vorgeschriebenen Ausführungsformen beschränkt.The invention is not limited to the prescribed embodiments.
Vorzugsweise gehen die Abschnitte 11 - 14, 21 - 24, abgesehen von den die Zahnspitze 6 bildenden Abschnittspaaren 13, 21 bzw. 14, 21, in Teilen oder insgesamt kontinuierlich ineinander über, sodass es in den betreffenden Bereichen keine diskontinuierlichen Übergänge gibt, die ein Klemmen oder Anhaften von Fasern begünstigen oder ermöglichen könnten.Preferably, the sections 11 - 14, 21 - 24, apart from the pairs of
Die vorbeschriebenen Formen von Zahnbrust 20 und Zahnrücken 10, oder auch deren Abschnitte 11 - 14; 21 - 24, können in beliebiger Weise miteinander kombiniert oder gegeneinander ausgetauscht werden.The forms of
Beispielsweise können die zweite und die fünfte Ausführungsform derart miteinander kombiniert sein, dass die Zahnrücken 10 terrassenartig ausgebildet sind.For example, the second and the fifth embodiment can be combined with one another in such a way that the tooth backs 10 are terraced.
Der vorgenannte Radius beim Abschnitt 22 kann auch einen anderen Wert annehmen.The aforementioned radius at
Der Abschnitt 22 kann auch einer Teilumfangslinie einer nicht kreisrunden Ellipse entsprechen.The
Im Ergebnis schafft die Erfindung einen Sägezahndraht 1, der insbesondere für Tambouren geeignet ist und es effektiv vermeidet, dass sich Fasern im unteren Bereich, d.h. im Bereich zwischen Zahnbrust 20 und Zahnrücken 10 zweier unmittelbar aufeinanderfolgender Zähne 3, ansammeln können. D. h. die Fasern werden in der Menge wesentlich weiter weg von der Zahnseite 5 und näher zur jeweiligen Zahnspitze 6 gehalten. Dies wirkt sich insbesondere günstig darauf aus, dass die Fasern von dem Sägezahndraht 1 von einer korrespondierenden Walze abgenommen werden können. Insbesondere beim Kardieren können die Fasern so besser der abnehmenden Walze zugeführt werden, was die Effizienz der mit dem Sägezahndraht 1 versehenen Spinnereivorbereitungsmaschine verbessert. Ein weiterer Vorteil ist, dass die Fasern aufgrund des erfindungsgemäßen Sägezahndrahts besser anderen, mit dem Sägezahndraht interagierenden Elementen wie Deckeln und Leisten zugeführt werden können.As a result, the invention creates a sawtooth wire 1 that is particularly suitable for drums and effectively prevents fibers from accumulating in the lower area, ie in the area between
- 11
- Sägezahndrahtsawtooth wire
- 22
- Zahnfußtooth root
- 33
- Zahntooth
- 44
- Auflagerandsupport edge
- 55
- Zahnseitetooth side
- 66
- Zahnspitzetooth tip
- 1010
- Zahnrückentooth back
- 1111
- Abschnittsection
- 1212
- Abschnittsection
- 1313
- Abschnittsection
- 1414
- Abschnittsection
- 2020
- Zahnbrusttooth chest
- 2121
- Abschnittsection
- 2222
- Abschnittsection
- 2323
- Abschnittsection
- 2424
- Abschnittsection
- huwhoa
- Höheheight
- aza.s
- Zahnspitzenabstandtooth tip distance
- hzhh
- Zahnspitzen-Höhetooth tip height
- hFhF
- Zahnfuß-Höhetooth root height
- IRIR
- Zahnrücken-Längetooth back length
- αa
- Winkelangle
Claims (14)
- A saw-tooth wire (1),• adapted for being helically mounted onto a spinning preparation machine roll around the outer circumference thereof and almost transversely to the axis of rotation thereof,• including- a tooth root (2) with a support border (4), which extends along the longitudinal extension of the saw-tooth wire (1), and- a row of teeth, which is formed on a tooth side (5) of the tooth root (2) facing away from the support border (4) and located opposite therefrom,• wherein, with the saw-tooth wire (1) being expanded,- the row of teeth extends along the longitudinal extension of the saw-tooth wire (1),- teeth (3) of the row of teeth being disposed one after the other in a row in longitudinal extension of the saw-tooth wire (1) such that they project from the tooth side (5) essentially vertically to the longitudinal extension of the saw-tooth wire (1),- each tooth (3)• has a tooth tip (6), which along the longitudinal extension of the saw-tooth wire (1), points in the same direction as the tooth tips of the other teeth (3) of the row of teeth and is located parallel to the tooth side (5) or includes an acute angle with the same, and• has a tooth face (20), which, starting at the tooth tip (6) of the tooth (3) is formed so as to° in a first section (21), extend at an acute angle to the tooth side (5) and to an associated tooth back (10) of the tooth (3),° transition into a concave second section (22) adjoining the end of the first section (21) remote from the tooth tip (6), the end thereof remote from the first section (21), at an acute angle, pointing to the tooth side (5) and pointing away from the associated tooth back (10),° transition into a third section (23) adjoining the end of the second section (22) remote from the first section (21), which third section (23) extends towards the tooth side (5) and away from the associated tooth back (10),° transition into a concave fourth section (24) adjoining the end of the third section (23) remote from the second section (22), the end thereof remote from the third section (23) pointing in the direction longitudinal extension of the saw-tooth wire (1) and away from the associated tooth back (10), and° with an end of the fourth section (24) remote from the third section (23) bordering a tooth back (10) of the following tooth (3) disposed in the row of teeth,- a turning point in the second section (22), at which a second tangent, which is applied to the second section (22), runs vertically to the tooth side (5), the length (hu) thereof, from the turning point to the tooth side (5), being greater than or equal to half a distance (hz), seen along the second tangent, between the associated tooth tip (6) and the tooth side (5), and- the second tangent and a first tangent, which is applied to the first section (21) at the point of the associated tooth tip (6), include a predetermined acute angle (α), which approximately• is 30°,- is between 30° and 55°, or• is 55°.
- The saw-tooth wire (1) according to claim 1, wherein the ratio of the length (hu) of the second tangent to the distance (hz) is 4 : 5.
- The saw-tooth wire (1) according to any of the preceding claims, wherein the second section (22) corresponds to a portion of a circumferential line of an ellipse.
- The saw-tooth wire (1) according to claim 3, wherein the ellipse is a circle with a predetermined radius.
- The saw-tooth wire (1) according to claim 4, wherein the radius is smaller than a difference between the length (hu) of the second tangent and the distance (hz).
- The saw-tooth wire (1) according to claim 4 or 5, wherein the radius is essentially 0.07 mm.
- The saw-tooth wire (1) according to any of the preceding claims, wherein the distance (hz) essentially is 0.5 mm.
- The saw-tooth wire (1) according to any of the preceding claims, wherein the ratio between the distance (hz) and a tooth tip distance (az) along the longitudinal extension of the saw-tooth wire (1) from the tooth tip (6) of a tooth (3) of the row of teeth to the tooth tip (6) of a directly neighbouring disposed tooth (3) of the row of teeth essentially is 5 : 17.
- The saw-tooth wire (1) according to any of the preceding claims, wherein a tooth tip distance (az) along the longitudinal extension of the saw-tooth wire (1) from the tooth tip (6) of a tooth (3) of the row of teeth to the tooth tip (6) of a directly neighbouring disposed tooth (3) of the row of teeth is approximately 2 mm.
- The saw-tooth wire (1) according to any of the preceding claims, wherein• the tooth back (10) of a tooth (3)- comprises a fifth section (11), which adjoins the fourth section (24) of the tooth (3) of the row of teeth respectively disposed in front thereof and extends away from said fourth section (24), and- comprises a sixth section (12), which adjoins the fifth section (11) at the end thereof remote from the fourth section (24) and extends towards the tooth tip (6) of the tooth (3), and• the fifth and the sixth sections (11, 12) with the tooth side (5) include acute angles and angles, which are differently sized with regard to each other.
- The saw-tooth wire (1) according to claim 10, wherein the greatest angle between the fifth section (11) and the tooth side (5) is smaller than the greatest angle between the sixth section (12 and the tooth side (5).
- The saw-tooth wire (1) according to claim 10 or 11, wherein• furthermore the tooth back (10) of the tooth (3) comprises a seventh section (13), which adjoins the sixth section (12) at the end thereof remote from the fifth section (11), and• the seventh section (13) with the tooth side (5) includes a greatest acute angle, which is greater than the greatest angle between the sixth section (12) and the tooth side (5).
- The saw-tooth wire (1) according to claim 12, wherein• furthermore the tooth back (10) comprises an eighth section (14), which adjoins the seventh section (13) at the end thereof remote from the sixth section (12), and• the eighth section (14) with the tooth side (5) includes a greatest acute angle, which is smaller than the greatest angle between the seventh section (13) and the tooth side (5).
- The saw-tooth wire (1) according to any of the preceding claims, wherein the transition area between at least two sections (24, 11; 11, 12; 12, 13; 13, 14; 21, 22; 22, 23; 23, 24) directly neighbouring each other and/or between the respective fourth section (14) and the adjoining tooth back (10) is or are configured continuously.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016114622.6A DE102016114622A1 (en) | 2016-08-08 | 2016-08-08 | sawtooth |
PCT/EP2017/067085 WO2018028904A1 (en) | 2016-08-08 | 2017-07-07 | Sawtooth wire for rollers of spinning preparation machines |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3497271A1 EP3497271A1 (en) | 2019-06-19 |
EP3497271B1 true EP3497271B1 (en) | 2022-03-02 |
Family
ID=59350907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17739943.3A Active EP3497271B1 (en) | 2016-08-08 | 2017-07-07 | Card wire |
Country Status (8)
Country | Link |
---|---|
US (1) | US10865503B2 (en) |
EP (1) | EP3497271B1 (en) |
CN (1) | CN109477253B (en) |
AR (1) | AR109297A1 (en) |
BR (1) | BR112019002621B1 (en) |
DE (1) | DE102016114622A1 (en) |
MX (1) | MX2019001657A (en) |
WO (1) | WO2018028904A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH717341A1 (en) | 2020-04-23 | 2021-10-29 | Rieter Ag Maschf | Trim wire. |
CN112725951B (en) * | 2020-12-23 | 2022-09-06 | 宜宾天之华纺织科技有限公司 | Acrylic fiber antistatic vortex spinning production process |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1927049A1 (en) | 1968-06-11 | 1970-06-04 | Graf & Co Ag | Card clothing |
GB2157330A (en) | 1984-02-29 | 1985-10-23 | Iwao Wada | Metallic card clothing |
JPS63102773U (en) | 1986-12-22 | 1988-07-04 | ||
DE3723872A1 (en) | 1987-07-18 | 1989-02-02 | Hollingsworth Gmbh | CLEANING SET FOR TEXTILE FIBER-PROCESSING ELEMENTS, IN PARTICULAR CLEANING ROLLERS |
JP2005320662A (en) | 2004-05-11 | 2005-11-17 | Kanai Hiroaki | Metallic wire for spinning machine |
EP1576215B1 (en) | 2002-11-25 | 2006-12-20 | Trützschler Card Clothing GmbH | All-steel card clothing for rollers and/or drums of carders or carding machines |
EP1657328B1 (en) | 2004-11-11 | 2009-07-15 | Rieter Ingolstadt GmbH | Fibre-opening unit having teeth with improved contour |
DE102014107079B3 (en) | 2014-04-07 | 2015-06-18 | TRüTZSCHLER GMBH & CO. KG | All-steel set for a card |
CN204738066U (en) | 2015-05-12 | 2015-11-04 | 金轮针布(江苏)有限公司 | Metallic card clothing for high yield |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2937413A (en) * | 1956-09-27 | 1960-05-24 | John D Hollingsworth | Carding tooth |
US3525127A (en) * | 1968-06-21 | 1970-08-25 | John D Hollingsworth | Foundation wire for card cylinders |
GB2022640B (en) * | 1978-05-25 | 1982-08-11 | English Card Clothing | Interlocking card-clothing wire |
DE8709898U1 (en) | 1987-07-18 | 1988-11-17 | Hergeth Hollingsworth GmbH, 4408 Dülmen | Cleaning set for textile fibre processing elements, in particular cleaning rollers |
CH678861A5 (en) * | 1988-08-24 | 1991-11-15 | Graf & Co Ag | |
US4964195A (en) * | 1988-11-18 | 1990-10-23 | Hollingsworth John D | Metallic card clothing |
CN2201406Y (en) * | 1994-06-02 | 1995-06-21 | 无锡县纺织分梳元件厂 | Special strong metal needle cloth |
DE4436378A1 (en) * | 1994-10-12 | 1996-04-18 | Staedtler & Uhl | Sawtooth set |
US6167792B1 (en) | 1995-03-23 | 2001-01-02 | American Saw & Mfg. Company | Tooth form for a saw blade |
DE29924404U1 (en) * | 1999-11-10 | 2003-02-06 | Graf + Cie Ag, Rapperswil | Saw-tooth wire for card clothing uses teeth and base section of numerically defined dimensional properties |
CN1224740C (en) * | 2002-12-20 | 2005-10-26 | 东华大学 | Special doffer metallic wire of soybean protein fibre |
CN2797392Y (en) * | 2005-03-22 | 2006-07-19 | 东华大学 | Doffer metal card clothing special for fining jute fine hair fiber |
DE102007062841A1 (en) * | 2007-12-21 | 2009-06-25 | TRüTZSCHLER GMBH & CO. KG | Sawtooth all-steel set for rolls and / or drums of carding or carding |
DE102008027355A1 (en) * | 2008-05-31 | 2009-12-03 | TRüTZSCHLER GMBH & CO. KG | Device on a card or card with a drum and at least one customer |
CN103930604B (en) * | 2011-11-15 | 2017-03-15 | 格罗茨-贝克特两合公司 | Metallic card clothing |
EP2918710A1 (en) * | 2014-03-12 | 2015-09-16 | Groz-Beckert KG | Card clothing wire and method for the preparation of staple fibre non-woven fabrics |
CN204251794U (en) * | 2014-11-07 | 2015-04-08 | 江苏派利帝纺织科技有限公司 | A kind of polyimide fiber special-purpose metal pin cloth |
CH711742A1 (en) * | 2015-11-12 | 2017-05-15 | Graf + Cie Ag | Clothing wire. |
CH713140A1 (en) * | 2016-11-16 | 2018-05-31 | Graf Cie Ag | Clothing wire. |
-
2016
- 2016-08-08 DE DE102016114622.6A patent/DE102016114622A1/en not_active Withdrawn
-
2017
- 2017-07-07 US US16/324,076 patent/US10865503B2/en active Active
- 2017-07-07 EP EP17739943.3A patent/EP3497271B1/en active Active
- 2017-07-07 BR BR112019002621-5A patent/BR112019002621B1/en active IP Right Grant
- 2017-07-07 WO PCT/EP2017/067085 patent/WO2018028904A1/en unknown
- 2017-07-07 CN CN201780044369.4A patent/CN109477253B/en active Active
- 2017-07-07 MX MX2019001657A patent/MX2019001657A/en unknown
- 2017-08-07 AR ARP170102214A patent/AR109297A1/en active IP Right Grant
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1927049A1 (en) | 1968-06-11 | 1970-06-04 | Graf & Co Ag | Card clothing |
GB2157330A (en) | 1984-02-29 | 1985-10-23 | Iwao Wada | Metallic card clothing |
JPS63102773U (en) | 1986-12-22 | 1988-07-04 | ||
DE3723872A1 (en) | 1987-07-18 | 1989-02-02 | Hollingsworth Gmbh | CLEANING SET FOR TEXTILE FIBER-PROCESSING ELEMENTS, IN PARTICULAR CLEANING ROLLERS |
EP1576215B1 (en) | 2002-11-25 | 2006-12-20 | Trützschler Card Clothing GmbH | All-steel card clothing for rollers and/or drums of carders or carding machines |
JP2005320662A (en) | 2004-05-11 | 2005-11-17 | Kanai Hiroaki | Metallic wire for spinning machine |
EP1657328B1 (en) | 2004-11-11 | 2009-07-15 | Rieter Ingolstadt GmbH | Fibre-opening unit having teeth with improved contour |
DE102014107079B3 (en) | 2014-04-07 | 2015-06-18 | TRüTZSCHLER GMBH & CO. KG | All-steel set for a card |
CN204738066U (en) | 2015-05-12 | 2015-11-04 | 金轮针布(江苏)有限公司 | Metallic card clothing for high yield |
Also Published As
Publication number | Publication date |
---|---|
MX2019001657A (en) | 2019-11-21 |
US20190169769A1 (en) | 2019-06-06 |
US10865503B2 (en) | 2020-12-15 |
CN109477253B (en) | 2021-07-09 |
WO2018028904A1 (en) | 2018-02-15 |
AR109297A1 (en) | 2018-11-14 |
BR112019002621A2 (en) | 2019-05-28 |
CN109477253A (en) | 2019-03-15 |
EP3497271A1 (en) | 2019-06-19 |
DE102016114622A1 (en) | 2018-02-08 |
BR112019002621B1 (en) | 2022-10-11 |
BR112019002621A8 (en) | 2022-07-05 |
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