EP3850131B1 - Combing machine - Google Patents
Combing machine Download PDFInfo
- Publication number
- EP3850131B1 EP3850131B1 EP19742362.7A EP19742362A EP3850131B1 EP 3850131 B1 EP3850131 B1 EP 3850131B1 EP 19742362 A EP19742362 A EP 19742362A EP 3850131 B1 EP3850131 B1 EP 3850131B1
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- EP
- European Patent Office
- Prior art keywords
- drafting system
- draft
- combing
- combing machine
- slivers
- 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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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
Definitions
- the present invention relates to a combing machine with several combing heads according to the preamble of claim 1.
- the combing machines all have eight combing heads, to which the fibers to be combed are presented in the form of laps with a width of approx. 30 cm. This means that the productivity of the comber depends almost exclusively on the number of comb cycles achieved, which is between 350 and 550 per minute in continuous operation. An increase in productivity in the combing department is therefore only possible with additional machines. With an increase in the number of combers, the number of winders must also be increased proportionately, with around five combers being fed by one winder today. This requires a lot of space and investment.
- a combing machine which has several groups of combing heads.
- the combing heads can be fed by means of spools or directly from cans.
- the invention is therefore based on the object of increasing the productivity of a combing machine in such a way that the upstream and downstream machines for spinning preparation can continue to be operated as unchanged as possible.
- the invention includes a combing machine with more than eight combing heads, each combing head being designed to be fed from cans by means of at least one lap or by means of at least one sliver, the combed fibers being combined into a separate sliver per combing head and transported to a delivery table , fed to a drafting system and drafted into a sliver and deposited in a can.
- the core idea of the invention is that due to the larger number of slivers compared to the prior art, the delivery table must also have a greater width in order to transport the slivers away. According to the invention, the drafting system also has to adapt due to the overall higher sliver weight.
- the drafting system has a working width of more than 180 mm, preferably at least 200 mm, at the nip line of the main draft. It has been shown that with a wider drafting system, the increased deflection in the center of the drafting system rollers has only a minor influence on the drafted fiber quality. On the contrary, an increase in the fiber mass of more than 0.4 ktex/mm at the nip line in the inlet of the main draft has a significantly more negative effect, since only the outer fiber layers are stretched over the cross section.
- the drafting system can preferably have at least two drafting zones for the predraft and at least one drafting zone for the main draft.
- the fiber mass per millimeter of nip line can be reduced via the additional predraft, so that the increased sliver mass can also be processed with a four-over-four or five-over-four drafting system.
- the combination of wider drafting system and an additional predraft is particularly advantageous in a combing machine with 16 or more combing heads, since the working width of the drafting system is, for example, 330 mm or even limited to 250 mm, at the same time the maximum fiber mass of 0.4 ktex/mm at the nip line in the inlet of the main draft is not exceeded.
- each draft field for the pre-draft is operated with a draft of 1.1x to 3.0x.
- the high fiber mass in the main draft zone can be ideally processed.
- the draft field for the main draft is operated with a draft of 2.0x to 30x.
- the slivers are preferably combined before entering the drafting system by means of guide elements or by means of an inlet funnel which has a tapering opening angle.
- the opening angle can taper in multiple stages or continuously.
- the guide elements can also be arranged between the drafting system rollers in order to continuously reduce the width of the drafted sliver.
- figure 1 shows a combing machine 1 according to the prior art, which has eight combing heads K1-K8.
- Each combing head K1-K8 is presented with its own lap W1-W8 with, for example, 80 ktex fibers and a width of approximately 300 mm.
- the combed fibers are each combined into a separate sliver F1-F8, each with approx.
- a total of eight slivers F1 - F8 transported to a drafting system 10.
- the eight slivers F1 - F8 enter the drafting system with a total sliver weight of approx.
- 90 ktex are drawn here by a factor of 18 and doubled and as a single sliver by means of a can coiler 20 in a can with approx. 5 ktex at a laydown speed of approx. 230 m/min.
- the Figures 2a and 2b show two plan views of two combing machines according to the invention, which can have 12 (top) K1-K12 or 16 (bottom) K1-K16 combing heads.
- Four combing heads K1 - K4 are combined into one module M1 and can be optionally expanded.
- Each module can be at least partially integrated into the existing drive system.
- the lower combing machine has a total of 16 combing heads K1 - K16, which have been combined into four modules M1 - M4.
- the modules M1 - M4 can be arranged one behind the other, opposite or symmetrically to the drafting system 10 and can be driven in different configurations with a motor and gear.
- the delivery table can therefore be equipped as a movable table (circulating conveyor belt) or with a transport device (vibrating table, driven roller guide), whereby the slivers can be be transported without tension from their deposit from the combing head to the drafting system 10.
- each combing head K1 - K12 is presented with its own winding W1 - W12 with approx. 80 ktex fibers, which has a width of approx. 300 mm.
- fibers are torn out of the unwound lap, combed out and soldered back to the previously combed fibers.
- the combed fibers are each combined into a separate sliver F1-F12, each with approx.
- a total of twelve slivers F1 - F12 are transported from the delivery table 5 to a drafting system 10 .
- the twelve slivers F1 - F12 enter the drafting system 10 with a total sliver weight of approx.
- 135 ktex are drawn here by a factor of 27 and doubled and deposited in a can with approx. 5 ktex by means of a can coiler 20 .
- the sliver runs through the drafting system 10 at a higher speed of around 350 m/min.
- the sliver is divided into cans with a diameter of preferably at least 1,000 mm after the combing machine according to the invention filed.
- FIG 3 shows an example of a modified combing machine 1 with twelve combing heads K1 - K12, where the sliver from two cans C1 - C24 with 400 to 600 mm diameter is presented.
- Four combing heads K1 - K4 are combined into one module M1 and can be optionally expanded.
- Each module can be at least partially integrated into the existing drive system.
- the combing heads K1 - K12 are narrower than the combing heads to which a lap is presented and are, for example, only 80 mm wide, with each combing head K1 - K12 having two slivers, each with approx be submitted to ktex.
- the combed fibers are each combined into a separate sliver F1-F12, each with approx.
- a total of twelve slivers F1-F12 are transported from the delivery table 5 to a drafting system 10 at a speed of around 80 m/min.
- the twelve slivers F1 - F12 enter the drafting system 10 with a total sliver weight of approx.
- the fiber sliver can be deposited in cans with a diameter of at least 1,000 mm after the combing machine according to the invention.
- the number of combing heads is according to the embodiments Figures 2a to 3 almost infinitely expandable.
- the delivery table has a greater width than in the prior art.
- the slivers can also be deposited in two levels one above the other, which can result in a more advantageous pre-doubling and subsequent drafting in the drafting system. If the combing machine is to be integrated into an existing spinning mill without significantly changing the upstream or downstream systems, then the combing machine must also deposit a single sliver with approximately 5 ktex in the can coiler 20 . This results in a significantly higher delivery speed and a significantly higher overall delay. The greater number of slivers to be laid causes a different impact of the fibers in the fleece guide.
- figure 4 shows a classic roller 11 of a drafting system with a working width at the nip line of 180 mm.
- a modified roller 11a of a drafting system with a working width of 330 mm is arranged on the nip line above this. Due to the absolutely higher pressure load due to the additional slivers with the same surface pressure, the pressure load on the drafting system rollers (top rollers) can be increased to up to 5.5 N/mm nip line in the main draft zone, which corresponds to a material load of over 1000 Newtons.
- the main draft In the case of a drafting system with a predraft zone and a main draft zone, the main draft must have a factor of 11.25 for a predraft factor of, for example, 1.58 times in order to deliver a sliver with approx. 5 ktex.
- the minimum working width at the nip line in the infeed of the main drafting zone is 143 mm with eight combing heads.
- the main draft With a twelve-head comber, approx. 135 ktex are delivered to the drafting system. With a pre-draft factor of 1.58 times, for example, the main draft must have a factor of 17 times in order to deliver a fiber sliver with approx. 5 ktex.
- the minimum working width at the nip line in the main draft area is 215 mm.
- the wider drafting system can be combined with another pre-draft field.
- At least one four-over-four drafting system ( figure 5 ) or a five-over-four drafting system ( figure 6 ) can be used, with which the main draft is reduced and the sliver is stretched more evenly.
- both predrafts can be set with a factor of 1.58, so that the main draft with an infeed of approx. 180 ktex only occurs with a factor of 15.
- the drafting system could be adjusted to a working width of approx. 200 to 220 mm at the nip line in the main drafting zone.
- figure 5 shows a drafting system 10, which is designed as a four-over-four drafting system and in which the rollers 11/12 and 13/14 form the first drafting field V1.
- the second draft area V2 is formed by the rollers 13/14 and 15/16, and the third draft area V3 by the rollers 15/16 and 17/18.
- the draft fields V1 and V2 serve as a pre-draft field and can preferably be operated with a draft of 1.1 to 3.0 times.
- the main draft zone V3 can be operated with a draft of 2.0x to 30x.
- the sliver not shown here, which is transported to the drafting system 10 via the delivery table 5, must be combined before it enters the drafting system 10.
- the total of the individual slivers on the delivery table 5 is wider than the working width at the clamping line in the main drafting zone V3. Therefore, before the first rollers 11/12, an inlet funnel 6 or a cross-belt deduction 7 is used.
- the infeed funnel has an enlarged funnel that can reduce the slivers from the width of the delivery table 5 to the working width at the nip line in the main drafting zone V3. At the route of figure 5 it is an unregulated route.
- the draw frame 10 is preceded by an infeed hopper 6 which has a variable infeed angle ⁇ in the direction of strip travel, which in figure 7 is further described.
- figure 6 shows a drafting system 10, which is designed as a five-over-four drafting system and in which the rollers 11/12 and 13/14 form the first drafting zone V1.
- the second draft area V2 is formed by the rollers 13/14 and 15/16, and the third draft area V3 by the rollers 15/16 and 17/18/19.
- the draft fields V1 and V2 serve as a pre-draft field and can preferably be operated with a draft of 1.1 to 3.0 times.
- the main draft zone V3 can be operated with a draft of 2.0x to 30x.
- the sliver not shown here, which is transported to the drafting system 10 via the delivery table 5, must be combined before it enters the drafting system 10 .
- the total of the individual slivers on the delivery table 5 is wider than the working width at the clamping line in the main drafting zone V3. Therefore, in front of the first rollers 11/12, guide elements 8, or an inlet hopper 6 or a cross-belt deduction 7 can be used.
- the infeed funnel 6 can, by means of an enlarged funnel, feed the slivers from the width of the delivery table 5 reduce to the working width at the nip line in the main draft zone V3.
- the route of figure 6 it is an unregulated route. It goes without saying that it can also be used in all exemplary embodiments with a controlled system.
- figure 7 shows a combing machine 1 with twelve combing heads K1-K12. Each combing head K1-K12 is presented with its own lap W1-W12, which has a width of approximately 300 mm.
- fibers are torn out of the unwound windings, combed out and soldered back to the previously combed fibers.
- the combed fibers are each combined into a separate sliver F1 - F12 and rotated by around 90° and transported to a delivery table 5 .
- a total of twelve slivers F1-F12 are transported from the delivery table 5 to a drafting system 10, which is preceded by a modified inlet funnel 6.
- the inlet funnel 6 is designed in two stages, with the first stage having an opening angle ⁇ 1 between 110° and 80°.
- the opening angle ⁇ 2 of the second stage is between 80° and 45°.
- the opening angle of the funnel can also be rounded and thus taper continuously from 110° to 80° to 80° to 45° without a step or shoulder.
- the fiber sliver guided on the delivery table 5 is precompacted and reduced to a working width of the clamping line of the drafting zone V3 by the inlet funnel 6 with the opening angle decreasing in the direction of sliver travel.
- the twelve slivers F1 - F12 run into the drafting system which is designed as a four-over-four drafting system, are drafted and doubled here and deposited as a single sliver in a can by means of a can coiler 20 .
- guide elements 8 can be arranged, with which the slivers are reduced in width.
- figure 8 shows the combing machine figure 7 , in which the slivers F1 - F12 are not combined via an inlet funnel 6, but via a transverse band take-off 7, which combines the slivers to the effective working width of the clamping line in the main draft of the drafting system 10 by means of two circulating bands 7a, 7b. Also at the end of the drafting system 10 there is a transverse sliver take-off 9 with which the wide but thin web from the drafting system 10 is combined into a fiber sliver for the can coiler 20 .
- the fiber sliver deposited in the can coiler 20 can also have a sliver weight of, for example, approximately 7.5 or approximately 10 ktex. Only the defaults in the pre-default field and/or in the main default field need to be adjusted here. With a sliver weight of approximately 5 to 10 ktex delivered to the can coiler 20, only minor adjustments need to be made to the existing spinning preparation machines.
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Description
Die vorliegende Erfindung betrifft eine Kämmmaschine mit mehreren Kämmköpfen nach dem Oberbegriff von Anspruch 1.The present invention relates to a combing machine with several combing heads according to the preamble of
In der heutigen Spinnereivorbereitung weisen die Kämmmaschinen einheitlich acht Kämmköpfe auf, denen die zu kämmenden Fasern als Wattewickel mit einer Breite von ca. 30 cm vorgelegt werden. Damit hängt die Produktivität der Kämmmaschine fast ausschließlich von der realisierten Kammspielzahl ab, die im Dauerbetrieb zwischen 350 bis 550 pro Minute beträgt. Eine Erhöhung der Produktivität in der Kämmerei ist damit nur mit weiteren Maschinen möglich. Bei einer Erhöhung der Anzahl der Kämmmaschinen muss auch anteilig die Anzahl der Wickelmaschinen erhöht werden, wobei heute rund fünf Kämmmaschinen durch eine Wickelmaschine gespeist wird. Damit ist ein hoher Platz- und Investitionsbedarf verbunden.In today's spinning mill preparation, the combing machines all have eight combing heads, to which the fibers to be combed are presented in the form of laps with a width of approx. 30 cm. This means that the productivity of the comber depends almost exclusively on the number of comb cycles achieved, which is between 350 and 550 per minute in continuous operation. An increase in productivity in the combing department is therefore only possible with additional machines. With an increase in the number of combers, the number of winders must also be increased proportionately, with around five combers being fed by one winder today. This requires a lot of space and investment.
In der
In der
Alle bisher bekannten Konzepte sind noch nie im Dauerbetrieb verwendet worden. Allen Konzepten fehlt darüber hinaus die vollständige Integration in eine Spinnereilinie, da die entstehenden Faserbänder ein deutlich höheres Gewicht als nach dem Stand der Technik aufweisen und die weitere nachfolgende Verarbeitung dieser dicken gekämmten Faserbänder nicht offenbart ist. Soll die nachfolgende Spinnereivorbereitung unverändert bleiben, muss aus diesen zuvor beschriebenen Kämmmaschinen weiterhin ein Faserband mit rund 5 bis 10 ktex geliefert werden, so dass nur mit leichter Anpassung die nachfolgenden Maschinen weiter betrieben werden können.All previously known concepts have never been used in continuous operation. In addition, all of the concepts lack complete integration into a spinning line, since the resulting slivers have a significantly higher weight than in the prior art and the further subsequent processing of these thick combed slivers is not disclosed. If the subsequent spinning preparation is to remain unchanged, a fiber sliver with around 5 to 10 ktex must still be supplied from the combing machines described above, so that the downstream machines can continue to be operated only with slight adjustments.
Der Erfindung liegt daher die Aufgabe zugrunde, die Produktivität einer Kämmmaschine so zu erhöhen, dass die vorgelagerten und nachfolgenden Maschinen der Spinnereivorbereitung möglichst unverändert weiter betrieben werden können.The invention is therefore based on the object of increasing the productivity of a combing machine in such a way that the upstream and downstream machines for spinning preparation can continue to be operated as unchanged as possible.
Die Lösung dieser Aufgabe erfolgt durch die Merkmale von Anspruch 1.This problem is solved by the features of
Die Erfindung umfasst eine Kämmmaschine mit mehr als acht Kämmköpfen, wobei jeder Kämmkopf ausgebildet ist, mittels mindestens eines Wickels oder mittels mindestens eines Faserbandes aus Kannen gespeist zu werden, wobei die gekämmten Fasern zu je einem separaten Faserband pro Kämmkopf zusammengefasst und zu einem Ablagetisch transportiert werden, einem Streckwerk zugeführt und zu einem Faserband verstreckt und in einer Kanne abgelegt werden. Kerngedanke der Erfindung ist, dass aufgrund der größeren Anzahl der Faserbänder im Vergleich zum Stand der Technik auch der Ablagetisch eine größere Breite aufweisen muss, um die Faserbänder abzutransportieren. Erfindungsgemäß muss sich aufgrund des in Summe höheren Bandgewichtes auch das Streckwerk anpassen. Die 1,5fache Bandmasse ist mit dem bisherigen Streckwerk nicht zu verarbeiten, da die Qualität des verstreckten Faserbandes deutlich abnimmt, wenn die maximal zu verstreckenden Fasermasse an der Klemmlinie im Einlauf des Hauptverzuges den Wert von 0,4 ktex/mm übersteigt. Erfindungsgemäß weist das Streckwerk an der Klemmlinie des Hauptverzuges eine Arbeitsbreite von mehr als 180 mm, vorzugsweise mindestens 200 mm auf. Es hat sich dabei gezeigt, dass bei einem breiteren Streckwerk die erhöhte Durchbiegung in der Mitte der Streckwerkswalzen nur einen geringen Einfluss auf die verstreckte Faserqualität hat. Vielmehr wirkt sich eine Erhöhung der Fasermasse über 0,4 ktex/mm an der Klemmlinie im Einlauf des Hauptverzuges deutlich negativer aus, da hierbei nur die äußeren Faserlagen über den Querschnitt verstreckt werden.The invention includes a combing machine with more than eight combing heads, each combing head being designed to be fed from cans by means of at least one lap or by means of at least one sliver, the combed fibers being combined into a separate sliver per combing head and transported to a delivery table , fed to a drafting system and drafted into a sliver and deposited in a can. The core idea of the invention is that due to the larger number of slivers compared to the prior art, the delivery table must also have a greater width in order to transport the slivers away. According to the invention, the drafting system also has to adapt due to the overall higher sliver weight. The 1.5-fold sliver mass cannot be processed with the previous drafting system, since the quality of the drawn sliver decreases significantly if the maximum fiber mass to be drawn at the nip line in the inlet of the main draft exceeds the value of 0.4 ktex/mm. According to the invention, the drafting system has a working width of more than 180 mm, preferably at least 200 mm, at the nip line of the main draft. It has been shown that with a wider drafting system, the increased deflection in the center of the drafting system rollers has only a minor influence on the drafted fiber quality. On the contrary, an increase in the fiber mass of more than 0.4 ktex/mm at the nip line in the inlet of the main draft has a significantly more negative effect, since only the outer fiber layers are stretched over the cross section.
Vorzugsweise kann das Streckwerk alternativ oder in Kombination mindestens zwei Verzugsfelder für den Vorverzug und mindestens ein Verzugsfeld für den Hauptverzug aufweisen. Über den zusätzlichen Vorverzug kann die Fasermasse pro Millimeter Klemmlinie gesenkt werden, so dass mit einem Vier-über-Vier- oder Fünf-über-Vier-Streckwerk ebenfalls die erhöhte Bandmasse verarbeitet werden kann.Alternatively or in combination, the drafting system can preferably have at least two drafting zones for the predraft and at least one drafting zone for the main draft. The fiber mass per millimeter of nip line can be reduced via the additional predraft, so that the increased sliver mass can also be processed with a four-over-four or five-over-four drafting system.
Da aber über den breiteren Ablagetisch jetzt 12, 16, 24 oder mehr gekämmte Faserbänder gleichzeitig in das Streckwerk einlaufen, ist insbesondere bei einer Kämmmaschine mit 16 und mehr Kämmköpfen die Kombination aus breiterem Streckwerk und einem zusätzlichen Vorverzug vorteilhaft, da die Arbeitsbreite des Streckwerkes auf beispielsweise 330 mm oder sogar nur auf 250 mm begrenzt werden kann, gleichzeitig die maximale Fasermasse von 0,4 ktex/mm an der Klemmlinie im Einlauf des Hauptverzuges nicht überschritten wird.However, since 12, 16, 24 or more combed slivers now enter the drafting system at the same time via the wider delivery table, the combination of wider drafting system and an additional predraft is particularly advantageous in a combing machine with 16 or more combing heads, since the working width of the drafting system is, for example, 330 mm or even limited to 250 mm, at the same time the maximum fiber mass of 0.4 ktex/mm at the nip line in the inlet of the main draft is not exceeded.
Vorteilhafterweise wird jedes Verzugsfeld für den Vorverzug mit einem Verzug von 1,1fach bis 3,0fach betrieben. Durch die Erhöhung des Vorverzuges bis auf 3,0fach lässt sich die hohe Fasermasse im Hauptverzugsfeld ideal verarbeiten.Advantageously, each draft field for the pre-draft is operated with a draft of 1.1x to 3.0x. By increasing the pre-draft up to 3.0 times, the high fiber mass in the main draft zone can be ideally processed.
Mit weiterem Vorteil wird das Verzugsfeld für den Hauptverzug mit einem Verzug von 2,0fach bis 30fach betrieben.With a further advantage, the draft field for the main draft is operated with a draft of 2.0x to 30x.
Um die erhöhte gekämmte Fasermasse auf dem verbreiterten Ablagetisch in das Streckwerk einlaufen zu lassen, werden bevorzugt vor dem Einlauf in das Streckwerk die Faserbänder mittels Führungselementen oder mittels eines Einlauftrichters zusammengefasst, der einen sich verjüngenden Öffnungswinkel aufweist. Der Öffnungswinkel kann sich mehrstufig oder kontinuierlich verjüngen.In order to allow the increased combed fiber mass to enter the drafting system on the widened delivery table, the slivers are preferably combined before entering the drafting system by means of guide elements or by means of an inlet funnel which has a tapering opening angle. The opening angle can taper in multiple stages or continuously.
Alternativ oder ergänzend können die Führungselemente auch zwischen den Streckwerkswalzen angeordnet sein, um das verstreckte Faserband kontinuierlich in der Breite zu reduzieren.Alternatively or additionally, the guide elements can also be arranged between the drafting system rollers in order to continuously reduce the width of the drafted sliver.
Bei sehr großen Fasermassen, die beispielsweise bei einer Kämmmaschine mit mindestens 16 Kämmköpfen verarbeitet werden, kann die Verwendung eines Querbandabzuges vor dem Einlauf in das Streckwerk vorteilhaft sein.In the case of very large fiber masses, which are processed, for example, in a combing machine with at least 16 combing heads, the use of a transverse sliver take-off before entering the drafting system can be advantageous.
Ebenso kann die Verwendung eines Querbandabzuges nach dem Streckwerk sinnvoll sein, da aus dem Streckwerk ein überbreites dünnes Vlies ausläuft, das als Faserband in der Kanne abgelegt werden muss. Vorteilhafterweise ist der Ablagetisch ausgebildet, die Faserbänder zwischen den Kämmköpfen und dem Streckwerk aktiv zu transportieren, so dass die Faserbänder mit wenig Zugkraft in das Streckwerk einlaufen. Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigen:
- Figur 1:
- eine Draufsicht auf eine Kämmmaschine nach dem Stand der Technik;
- Figur 2a, 2b:
- zwei Draufsichten auf zwei erfindungsgemäße Kämmmaschinen mit mehr als acht Kämmköpfen;
- Figur 3:
- eine Draufsicht auf eine weitere erfindungsgemäße Kämmmaschine mit zwölf Kämmköpfen;
- Figur 4:
- ein Größenvergleich von zwei Streckwerkswalzen;
- Figur 5:
- ein Vier-über-Vier-Streckwerk;
- Figur 6:
- ein Fünf-über-Vier-Streckwerk;
- Figur 7:
- eine Draufsicht auf eine weitere erfindungsgemäße Kämmmaschine mit zwölf Kämmköpfen;
- Figur 8:
- eine Draufsicht auf eine weitere erfindungsgemäße Kämmmaschine mit zwölf Kämmköpfen.
- Figure 1:
- a plan view of a combing machine according to the prior art;
- Figure 2a, 2b:
- two top views of two combing machines according to the invention with more than eight combing heads;
- Figure 3:
- a plan view of another combing machine according to the invention with twelve combing heads;
- Figure 4:
- a size comparison of two drafting system rollers;
- Figure 5:
- a four-over-four drafting system;
- Figure 6:
- a five-over-four drafting system;
- Figure 7:
- a plan view of another combing machine according to the invention with twelve combing heads;
- Figure 8:
- a top view of another combing machine according to the invention with twelve combing heads.
Die
Da jetzt vier bis acht weitere Faserbänder die Kämmköpfe verlassen und auf dem Ablagetisch 5 abgelegt werden, weisen die Faserbänder, die am weitesten vom Streckwerk 10 auf dem Ablagetisch 5 abgelegt werden, das bis zu doppelte Faserbandgewicht aufgrund längerer Förderstrecke auf. Dabei kann trotz polierter Auflagefläche auf dem Ablagetisch 5 auf diese Faserbänder ein deutlich höherer Verzug beim Transport zum Streckwerk 10 lasten, als beispielsweise bei den Faserbändern F1 oder F2. Da es aufgrund Schwächung der Bandfestigkeit durch die Lötstellen, kann die Erhöhung des Eigengewichtes ausreichend sein, damit das Faserband reißt. Aus diesem Grund kann es notwendig sein, dass bei mehr als acht Kämmköpfen das abgelegte Faserband aktiv zur Strecke 10 transportiert wird. Der Ablagetisch kann daher als verfahrbarer Tisch (umlaufendes Förderband) oder mit einer Transportvorrichtung (Rütteltisch, angetriebene Rollenführung) ausgestattet sein, wodurch die Faserbänder möglichst zugfrei von ihrer Ablage aus dem Kämmkopf bis in das Streckwerk 10 transportiert werden.Since four to eight more slivers now leave the combing heads and are deposited on the deposit table 5, the slivers that are deposited furthest from the
Nach
Das Ausführungsbeispiel der
Die Kämmköpfe K1 - K12 sind schmaler ausgebildet als die Kämmköpfe, denen ein Wickel vorgelegt wird, und sind beispielsweise nur 80 mm breit, wobei jedem Kämmkopf K1 - K12 zwei Faserbänder mit jeweils ca. 10 ktex vorgelegt werden. Die gekämmten Fasern werden zu je einem separaten Faserband F1 - F12 mit je ca. 3,1 ktex zusammengefasst und um rund 90° gedreht zu einem Ablagetisch 5 transportiert. Vom Ablagetisch 5 werden insgesamt zwölf Faserbänder F1 - F12 zu einem Streckwerk 10 mit einer Geschwindigkeit von rund 80 m/min transportiert. Die zwölf Faserbänder F1 - F12 laufen mit einem gesamten Bandgewicht von ca. 37 ktex in das Streckwerk 10 ein, werden hier um den Faktor 7,5 verstreckt und doubliert und mittels einer Kannenablage 20 in einer Kanne mit ca. 5 ktex abgelegt. Bei 16 Kämmköpfen (hier nicht dargestellt) würden 16 Faserbänder mit insgesamt ca. 49,6 Ktex in das Streckwerk 10 einlaufen. Um die Wechselzeiten der Ablagekanne nicht unnötig zu verkürzen, kann das Faserband nach der erfindungsgemäßen Kämmmaschine in Kannen mit einem Durchmesser von mindestens 1.000 mm abgelegt werden. Die Anzahl der Kämmköpfe ist nach den Ausführungsbeispielen der
Da sich die Anzahl der Faserbänder im Vergleich zum Stand der Technik erhöht oder sogar verdoppelt hat, weist der Ablagetisch eine größere Breite auf als nach dem Stand der Technik. Alternativ oder ergänzend können die Faserbänder auch in zwei Ebenen übereinander abgelegt werden, wodurch sich eine vorteilhaftere Vordoublierung und nachfolgende Verstreckung im Streckwerk ergeben kann. Soll die Kämmmaschine in eine bestehende Spinnerei integriert werden, ohne dass die vorgeordneten oder nachfolgenden Anlagen nennenswert verändert werden, dann muss die Kämmmaschine ebenfalls ein einziges Faserband mit ca. 5 ktex in der Kannenablage 20 ablegen. Es ergibt sich damit eine deutlich höhere Abliefergeschwindigkeit und ein deutlich höherer Gesamtverzug. Die größere Anzahl an abzulegenden Faserbändern bewirkt einen veränderten Aufprall der Fasern im Vliesführer.Since the number of slivers has increased or even doubled compared to the prior art, the delivery table has a greater width than in the prior art. Alternatively or additionally, the slivers can also be deposited in two levels one above the other, which can result in a more advantageous pre-doubling and subsequent drafting in the drafting system. If the combing machine is to be integrated into an existing spinning mill without significantly changing the upstream or downstream systems, then the combing machine must also deposit a single sliver with approximately 5 ktex in the
Hierzu ergeben sich folgende voneinander unabhängige oder auch miteinander kombinierbare Lösungen:
Aufgrund von Versuchen mit einer Kämmmaschine mit 12 Kämmköpfen ist eine bestimmte minimale Breite des Streckwerkes erforderlich. Bei einem qualitativ hochwertigen verstreckten Faserband hat sich eine maximale Fasermasse von 0,4 ktex/mm Klemmlinie im Einlauf des Hauptverzuges als vorteilhaft herausgestellt. Bei einem höheren Wert würden nur die äußeren Lagen an Fasern verstreckt, so dass in Folge das verstreckte Faserband ungleichmäßig ist. Ausgehend von einer klassischen Kämmmaschine mit acht Kämmköpfen wird ein drei-über-drei oder vier-über-drei-Streckwerk verwendet, mit einem einzigen Vorverzugsfeld und einem einzigen Hauptverzugsfeld, das eine Arbeitsbreite an der Klemmlinie von 180 mm aufweist. Demzufolge muss die Arbeitsbreite an der Klemmlinie im Einlauf des Hauptverzugsfeldes bei einer Kämmmaschine mit 12 Kämmköpfen mindestens 250 mm betragen, und bei einer Kämmmaschine mit 16 Kämmköpfen mindestens 300 mm betragen.This results in the following independent or combinable solutions:
Based on tests with a combing machine with 12 combing heads, a certain minimum width of the drafting system is required. In the case of a high-quality drafted sliver, a maximum fiber mass of 0.4 ktex/mm nip line at the inlet of the main draft has proven advantageous. At a higher value, only the outer layers of fibers would be stretched, with the result that the stretched sliver is uneven. Based on a classic comber with eight combing heads, a three-over-three or four-over-three drafting system is used, with a single pre-drafting zone and a single main drafting zone, which has a working width at the nip line of 180 mm. Accordingly, the working width at the nip line at the inlet of the main drafting zone must be at least 250 mm for a comber with 12 combing heads, and at least 300 mm for a comber with 16 combing heads.
Bei einem Streckwerk mit einem Vorverzugsfeld und einem Hauptverzugsfeld muss bei einem Faktor des Vorverzuges von beispielsweise 1,58fach der Hauptverzug einen Faktor von 11,25fach aufweisen, um ein Faserband mit ca. 5 ktex abzuliefern. Die minimale Arbeitsbreite an der Klemmlinie im Einlauf des Hauptverzugsfeldes beträgt 143 mm bei acht Kämmköpfen.In the case of a drafting system with a predraft zone and a main draft zone, the main draft must have a factor of 11.25 for a predraft factor of, for example, 1.58 times in order to deliver a sliver with approx. 5 ktex. The minimum working width at the nip line in the infeed of the main drafting zone is 143 mm with eight combing heads.
Bei einer Zwölfkopfkämmmaschine werden ca. 135 ktex an das Streckwerk geliefert. Bei einem Vorverzugsfaktor von beispielsweise 1,58fach muss der Hauptverzug einen Faktor von 17fach aufweisen, um ein Faserband mit ca. 5 ktex abzuliefern. Die minimale Arbeitsbreite an der Klemmlinie im Hauptverzugsfeld beträgt 215 mm.With a twelve-head comber, approx. 135 ktex are delivered to the drafting system. With a pre-draft factor of 1.58 times, for example, the main draft must have a factor of 17 times in order to deliver a fiber sliver with approx. 5 ktex. The minimum working width at the nip line in the main draft area is 215 mm.
Bei einer 16-Kopfkämmmaschine werden ca. 180 ktex an das Streckwerk geliefert, das mit einem Vorverzugsfaktor von 1,58fach eingestellt wurde. Der Hauptverzug wird mit einem Faktor von 23fach eingestellt und die minimale Arbeitsbreite an der Klemmlinie im Hauptverzugsfeld beträgt 285 mm.With a 16-head comber, approx. 180 ktex are delivered to the drafting system, which was set with a pre-draft factor of 1.58 times. The main draft is set with a factor of 23 and the minimum working width at the nip line in the main draft zone is 285 mm.
Damit der Hauptverzug nicht zu groß wird, kann das breitere Streckwerk mit einem weiteren Vorverzugsfeld kombiniert werden. Hierzu kann mindestens ein vier-über-vier-Streckwerk (
Bei allen zuvor aufgeführten Beispielen kann das in der Kannenablage 20 abgelegte Faserband auch ein Bandgewicht von beispielsweise ca. 7,5 oder ca. 10 ktex aufweisen. Hier sind lediglich die Verzüge im Vorverzugsfeld und/oder im Hauptverzugsfeld anzupassen. Bei einem an die Kannenablage 20 abgelieferten Bandgewicht von ca. 5 bis 10 ktex sind bei den vorhandenen Maschinen der Spinnereivorbereitung nur geringfügige Änderungen in der Einstellung vorzunehmen.In all of the examples listed above, the fiber sliver deposited in the can coiler 20 can also have a sliver weight of, for example, approximately 7.5 or approximately 10 ktex. Only the defaults in the pre-default field and/or in the main default field need to be adjusted here. With a sliver weight of approximately 5 to 10 ktex delivered to the
- 11
- Kämmmaschinecombing machine
- 55
- Ablagetischstorage table
- 66
- Einlauftrichterinlet funnel
- 77
- Querbandabzugcross belt deduction
- 7a, 7b7a, 7b
- umlaufendes Bandcirculating band
- 88th
- Führungselementguide element
- 99
- Querbandabzugcross belt deduction
- 1010
- Streckwerkdrafting system
- 11, 11a11, 11a
- Walzeroller
- 1212
- Walzeroller
- 1313
- Walzeroller
- 1414
- Walzeroller
- 1515
- Walzeroller
- 1616
- Walzeroller
- 1717
- Walzeroller
- 1818
- Walzeroller
- 1919
- Walzeroller
- 2020
- Kannenablagecan rack
- C1 - C24C1-C24
- Kannepot
- F1 - F816F1 - F816
- Faserbandsliver
- K1 - K16K1 - K16
- Kämmkopfcomb head
- M1 - M4M1 - M4
- Modulmodule
- V1 - V3V1 - V3
- Verzugsfelddefault field
- W1 - W16W1 - W16
- Wickelwrap
Claims (13)
- Combing machine (1) with more than eight combing heads, wherein each combing head is configured for being fed by means of at least one wound lap or at least one sliver from cans, wherein the combed fibres are combined to respectively one separate sliver per combing head and transported to a deposit table (5), supplied to a drafting system (10) and drafted to one sliver and coiled in a can, characterized in that the drafting system (10) at the nip line in the feed of the main draft has a working width of more than 180 mm, preferably at least 200 mm.
- Combing machine (1) according to claim 1, characterized in that the drafting system (10) is formed to treat at the nip line in the feed of the main draft a maximum fibre mass of 0.4 ktex per millimetre nip line.
- Combing machine (1) according to claim 1 or 2, characterized in that the drafting system (10) includes at least two draft zones (V1, V2) for the break draft and at least one draft zone (V3) for the main draft.
- Combing machine (1) according to claim 3, characterized in that the drafting system (10) is formed as a four over four drafting system or five over four drafting system.
- Combing machine (1) according to claim 3, characterized in that each draft zone (V1, V2) is operated for the break draft at a draft of 1.1 times to 3.0 times.
- Combing machine (1) according to claim 3, characterized in that the at least one draft zone (V3) is operated for the main draft at a draft of 2,0 times to 30 times.
- Combing machine (1) according to any of the aforementioned claims, characterized in that the pressure load on the drafting system rolls (top rolls) amounts to up to 5.5 N per millimetre nip line in the main draft zone.
- Combing machine (1) according to any of the aforementioned claims, characterized in that, upstream the feed into the drafting system (10), the slivers are combined by means of a feed funnel, which has a tapering opening angle.
- Combing machine (1) according to any of the aforementioned claims, characterized in that, upstream the feed into the drafting system (10), the slivers are combined by means of a transverse web delivery belt (7).
- Combing machine (1) according to any of the aforementioned claims, characterized in that, upstream the feed into the drafting system (10) or in the drafting system, the slivers are combined by means of at least one guiding element (8).
- Combing machine (1) according to any of the aforementioned claims, characterized in that, downstream the drafting system (10), the slivers are combined by a transverse web delivery belt (9).
- Combing machine (1) according to any of the aforementioned claims, characterized in that the deposit table (5) is formed for actively transporting the slivers between the combing heads and the drafting system.
- Combing machine (1) according to any of the aforementioned claims, characterized in that the drafted sliver can be coiled in a can having a diameter of at least 1000 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018122276.9A DE102018122276B4 (en) | 2018-09-12 | 2018-09-12 | Comber |
| PCT/EP2019/069484 WO2020052837A1 (en) | 2018-09-12 | 2019-07-19 | Combing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3850131A1 EP3850131A1 (en) | 2021-07-21 |
| EP3850131B1 true EP3850131B1 (en) | 2022-09-07 |
Family
ID=67390079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19742362.7A Active EP3850131B1 (en) | 2018-09-12 | 2019-07-19 | Combing machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3850131B1 (en) |
| CN (1) | CN112654737B (en) |
| DE (1) | DE102018122276B4 (en) |
| WO (1) | WO2020052837A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111893602A (en) * | 2020-08-25 | 2020-11-06 | 常州天虹纺织有限公司 | A kind of semi-combed carding equipment |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB273808A (en) * | 1926-04-07 | 1927-07-07 | Arthur Noyes Sheldon | Improvements in or relating to the manufacture of yarn or thread |
| IT1029774B (en) * | 1975-02-18 | 1979-03-20 | Tematek Spa | RETRAPPING MACHINE WITH REMOVAL AND RETRAPPING MEANS FOR SYNTHETIC AND ARTIFICIAL TEXTILE FIBERS |
| DE8610742U1 (en) * | 1986-04-19 | 1986-05-28 | Bockemühl-Wüllenweber, Horst, 5275 Bergneustadt | Cylindrical roller for textile processing machines |
| DE58907408D1 (en) * | 1988-12-22 | 1994-05-11 | Rieter Ag Maschf | Combing machine. |
| CH681309A5 (en) * | 1990-05-23 | 1993-02-26 | Rieter Ag Maschf | Staple fibre combing method - using installation of narrow machines fed from sliver to obtain high speed prodn. |
| CH681895A5 (en) * | 1990-10-02 | 1993-06-15 | Rieter Ag Maschf | |
| DE19707206A1 (en) * | 1997-02-24 | 1998-08-27 | Rieter Ag Maschf | Combined sliver |
| CH698054B1 (en) * | 2005-07-26 | 2009-05-15 | Rieter Agpatente Und Lizenzen | Comber with several combing heads arranged in a row. |
| CH697734B1 (en) * | 2005-07-26 | 2009-01-30 | Rieter Agpatente Und Lizenzen | Textile material processing machine. |
| DE502007001621D1 (en) * | 2006-12-21 | 2009-11-12 | Rieter Ag Maschf | Tear-off roller for a combing machine |
| CH701420A2 (en) * | 2009-07-10 | 2011-01-14 | Rieter Ag Maschf | Device for forming a sliver. |
| CH702008A2 (en) * | 2009-10-08 | 2011-04-15 | Rieter Ag Maschf | Comber sliver with guide means. |
| CN205774990U (en) * | 2016-04-22 | 2016-12-07 | 里特机械公司 | Ribbon guide and combing machine |
-
2018
- 2018-09-12 DE DE102018122276.9A patent/DE102018122276B4/en active Active
-
2019
- 2019-07-19 CN CN201980058055.9A patent/CN112654737B/en active Active
- 2019-07-19 WO PCT/EP2019/069484 patent/WO2020052837A1/en not_active Ceased
- 2019-07-19 EP EP19742362.7A patent/EP3850131B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018122276A1 (en) | 2020-03-12 |
| EP3850131A1 (en) | 2021-07-21 |
| WO2020052837A1 (en) | 2020-03-19 |
| CN112654737B (en) | 2022-12-06 |
| DE102018122276B4 (en) | 2021-02-11 |
| CN112654737A (en) | 2021-04-13 |
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