EP0124481B1 - Apparatus for transmitting high velocity to a running fibre, and process for threading-up this fibre - Google Patents
Apparatus for transmitting high velocity to a running fibre, and process for threading-up this fibre Download PDFInfo
- Publication number
- EP0124481B1 EP0124481B1 EP84810177A EP84810177A EP0124481B1 EP 0124481 B1 EP0124481 B1 EP 0124481B1 EP 84810177 A EP84810177 A EP 84810177A EP 84810177 A EP84810177 A EP 84810177A EP 0124481 B1 EP0124481 B1 EP 0124481B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- godet
- zone
- running
- fibre
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000000835 fiber Substances 0.000 title 2
- 235000019592 roughness Nutrition 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 6
- 238000005524 ceramic coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D11/00—Other features of manufacture
Definitions
- the invention relates to a godet with a circumferential speed of at least 2500 m / min, to which a running thread is applied, and a separating roller, as well as a method for applying a running thread to the godet and the use of the godet.
- the known device has the further disadvantage that only the highly polished part of the godet can be used for operation during operation and thus only a limited number of turns can be provided.
- the method has apparently given satisfactory results at low thread speeds below 1000 m / min, but is unsuitable for applying a thread with a high initial speed on a rapidly rotating godet.
- DE-AS 16 60 149 also relates to a device for stretching and heat treating a thread made of thermoplastic polymers with a driven drawing roller, a thread separating roller and a stationary roller.
- the separating roller is matt chrome-plated over its entire surface, which is sufficient for the transfer of low speeds to a running thread.
- the thread has no constant properties.
- the relative movement between the thread and the peripheral speed of the separating roller naturally results in greater wear of the surface of the separating roller.
- the object of the present invention is to put a running thread of high speed around a driven high-speed godet with a separating roller.
- the present object is achieved according to the invention in that the surface of the separating roller has two zones of different roughness.
- each zone extends to approximately half of the separation roller.
- the location of the zone with the larger and smaller roughness is determined by the area of use. If the thread tension of the running thread is greater at the inlet than at the outlet, it is advantageous if the zone with the smaller roughness at the inlet is on the motor side, because then it is better guaranteed that the thread and the reel have the same speed.
- the area with the coarser roughness is at the front.
- the position at the rear and front is determined by the position of the motor for driving the godet: rear means where the motor is attached. If the tension of the thread at the outlet is greater than at the inlet, the zone with the greater roughness is located at the back.
- the zone with the greater roughness is matt chrome-plated or ceramic-coated.
- a matt chrome-plated zone means a zone that is first sandblasted and then chrome-plated, which creates a so-called orange peel surface.
- a surface that is also suitable can also be provided by means of ceramic coating and special treatment, i.e. by means of brush grinding.
- Suitable terms for describing and defining surface roughness exist in German and American standards. The most important term is the "average roughness value" according to DIN ("Roughness Height” ASA B 46.1-1962), which is the arithmetic mean of the distances between the actual profile and the average profile, measured perpendicular to the average profile.
- the mean roughness (1) of the surface with the greater roughness is between 0.5 and 2.2 micrometers (gm), preferably between 0.6 and 2.2 j.lm. Polished surfaces, on the other hand, have an average roughness of around 0.04gm.
- the rough surface of the separation roller also has the following roughness values:
- the invention further relates to a method for applying a running thread to the device described above, characterized in that the thread in contact with the matt part of the by means of a thread guide Separating roller is brought and after removal of this thread guide runs on the polished part of the separating roller.
- the device according to the invention can be used wherever a godet is used which has to be wrapped around at least 360 °.
- the thread separation roller then has the effect that the running and running thread lie separately from one another on the roller.
- the invention further relates to the use of the above-mentioned device in a quick spin, spin draw, quick spin draw, stretch, texturing, stretch texturing, spin stretch texturing or heat treatment process.
- This spin-stretching system consists of a driven delivery godet 1 with its corresponding separating roller 2 and a driven take-off godet 3 with its corresponding separating roller 4.
- the separating roller 4 has a matt chrome-plated part a and a motor-chromium-plated part b.
- a thread 5 comes from a spinneret and is placed five times on the delivery godet 1 by means of a thread take-up device. For further retraction, the thread 5 is placed over a thread guide 6 on the take-off godet 3 and on the matt chrome-plated part a of the separation roller 4 with at least 2-3 turns. The thread guide 6 is then removed from the thread path, with the result that the thread turns on the take-off godet 3 shift rearward onto the bright chrome-plated part b. Thereafter, further wraps can be placed around the take-off godet 3, and the thread 5 can be passed on to the next pair of rolls or to a winder or to a texturing zone.
- the high speed of the thread means a speed of at least 2500 m / min.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Die Erfindung betrifft eine Galette mit einer Umfangsgeschwindigkeit von wenigstens 2500 m/ min, an die ein laufender Faden angelegt wird und eine Trennrolle sowie ein Verfahren zum Anlegen eines laufenden Fadens an die Galette und die Verwendung der Galette.The invention relates to a godet with a circumferential speed of at least 2500 m / min, to which a running thread is applied, and a separating roller, as well as a method for applying a running thread to the godet and the use of the godet.
Aus der US-A 3-323-191 ist ein Verfahren zum Verstrecken eines Filamentfadens mittels einer angetriebenen Streckgalette bekannt, deren Oberfläche unterschiedliche Rauheiten aufweist. Die Oberfläche der zugehörigen Trennrolle ist homogen. Die äussere rauhe Oberfläche der angetriebenen Streckgalette dient nur zum Anfahren und hat die Aufgabe, einen hohen Schlupf des Fadens zu erzeugen, damit dieser beim Beschleunigen unter hoher Spannung nicht reisst. Hat der Faden einmal die Geschwindigkeit der Galette erreicht, wird er auf die glatte, polierte Oberfläche der Galette verschoben, wo er während des Betriebes verbleiben muss.From US-A 3-323-191 a method for stretching a filament thread by means of a driven stretch godet is known, the surface of which has different roughnesses. The surface of the associated separation roller is homogeneous. The outer rough surface of the driven stretch godet is only used for starting and has the task of creating a high slip of the thread so that it does not tear when accelerated under high tension. Once the thread has reached the speed of the godet, it is shifted onto the smooth, polished surface of the godet, where it must remain during operation.
Müsste der laufende Faden die hochglanzpolierte Rolle vom Stillstand schlagartig beschleunigen, würde bei Fadengeschwindigkeiten von 2500 m/min sofort Fadenbruch auftreten.If the running thread had to suddenly accelerate the highly polished roll from standstill, thread breakage would immediately occur at thread speeds of 2500 m / min.
Die bekannte Vorrichtung hat den weiteren Nachteil, dass während des Betriebes lediglich der hochglanzpolierte Teil der Galette für den Betrieb nutzbar ist und somit nur eine beschränkte Anzahl von Umwindungen vorgesehen werden können.The known device has the further disadvantage that only the highly polished part of the godet can be used for operation during operation and thus only a limited number of turns can be provided.
Das Verfahren hat offenbar befriedigende Ergebnisse bei niedrigen Fadengeschwindigkeiten unter 1000 m/min ergeben, ist jedoch zum Anlegen eines Fadens hoher Anfangsgeschwindigkeit auf eine rasch rotierende Galette ungeeignet.The method has apparently given satisfactory results at low thread speeds below 1000 m / min, but is unsuitable for applying a thread with a high initial speed on a rapidly rotating godet.
Auch die DE-AS 16 60 149 betrifft eine Vorrichtung zum Verstrecken und Wärmebehandeln eines Fadens aus thermoplastischen Polymeren mit einer angetriebenen Streckwalze, einer Fadentrennrolle und einer feststehenden Walze. In dieser Vorrichtung ist die Trennrolle auf ihrer ganzen Oberfläche mattverchromt, was für die Übertragung kleiner Geschwindigkeiten auf einen laufenden Faden genügend ist. Sobald jedoch hohe Geschwindigkeiten und feine Titer in Frage kommen, verbleibt eine Geschwindigkeitsdifferenz zwischen Faden und Trennrolle, die nicht über längere Zeit konstant gehalten werden kann. Dementsprechend hat der Faden keine konstanten Eigenschaften. Dazu erfolgt durch die relative Bewegung zwischen Faden und Umfangsgeschwindigkeit der Trennrolle naturgemäss ein grösserer Verschleiss der Oberfläche der Trennrolle.DE-AS 16 60 149 also relates to a device for stretching and heat treating a thread made of thermoplastic polymers with a driven drawing roller, a thread separating roller and a stationary roller. In this device, the separating roller is matt chrome-plated over its entire surface, which is sufficient for the transfer of low speeds to a running thread. However, as soon as high speeds and fine titers come into question, there remains a speed difference between the thread and the separating roller, which cannot be kept constant over a long period of time. Accordingly, the thread has no constant properties. In addition, the relative movement between the thread and the peripheral speed of the separating roller naturally results in greater wear of the surface of the separating roller.
Dieser Nachteil würde durch eine ganz polierte Trennrolle, die ebenfalls bekannt ist, behoben, d.h. mit einer polierten Trennrolle hätte diese die gleiche Geschwindigkeit wie der Faden. Die Fäden können aber bei hohen Geschwindigkeiten nicht an eine solche Rolle angelegt werden, ohne dass dabei die Fibrillen auf der polierten Trennrolle kleben bleiben und dadurch reissen würden.This disadvantage would be remedied by a completely polished separating roller, which is also known, i.e. with a polished separation roller it would have the same speed as the thread. However, the threads cannot be placed on such a roll at high speeds without the fibrils sticking to the polished separating roll and thereby tearing.
Die Aufgabe der vorliegenden Erfindung ist es, einen laufenden Faden hoher Geschwindigkeit um eine angetriebene schnellaufende Galette mit Trennrolle anzulegen.The object of the present invention is to put a running thread of high speed around a driven high-speed godet with a separating roller.
Die vorliegende Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Oberfläche der Trennrolle zwei Zonen unterschiedlicher Rauhigkeit aufweist.The present object is achieved according to the invention in that the surface of the separating roller has two zones of different roughness.
Die Länge der beiden Zonen ist nicht kritisch. Im normalen Fall erstreckt sich jede Zone auf ungefähr die Hälfte der Trennrolle. Der Ort der Zone mit der grösseren und kleineren Rauhigkeit ist durch das Einsatzgebiet bedingt. Wenn die Fadenspannung des laufenden Fadens beim Einlauf grösser ist als beim Ablauf, ist es von Vorteil, wenn die Zone mit der kleineren Rauhigkeit beim Einlauf motorseitig liegt, weil dann besser gewährleistet ist, dass Faden und Rolle die gleiche Geschwindigkeit haben.The length of the two zones is not critical. In the normal case, each zone extends to approximately half of the separation roller. The location of the zone with the larger and smaller roughness is determined by the area of use. If the thread tension of the running thread is greater at the inlet than at the outlet, it is advantageous if the zone with the smaller roughness at the inlet is on the motor side, because then it is better guaranteed that the thread and the reel have the same speed.
Dementsprechend liegt dann die Zone mit der gröberen Rauhigkeit vorne. In der vorliegenden Beschreibung ist die Position hinten und vorne durch die Position des Motors zum Antrieb der Galette bestimmt: hinten heisst, dort wo der Motor angebracht ist. Wenn die Spannung des Fadens beim Ablauf grösser ist als beim Einlauf, ist die Zone mit der grösseren Rauhigkeit hinten angebracht.Accordingly, the area with the coarser roughness is at the front. In the present description, the position at the rear and front is determined by the position of the motor for driving the godet: rear means where the motor is attached. If the tension of the thread at the outlet is greater than at the inlet, the zone with the greater roughness is located at the back.
Die Zone mit der grösseren Rauhigkeit ist mattverchromt oder keramikbeschichtet. Unter mattverchromter Zone versteht man eine zuerst sandgestrahlte und dann verchromte Zone, wodurch eine sogenannte Orangenhautoberfläche entsteht. Eine ebenfalls geeignete Oberfläche kann auch mittels Keramikbeschichtung und spezieller Behandlung, d.h. mittels Bürstenschliff, erreicht werden.The zone with the greater roughness is matt chrome-plated or ceramic-coated. A matt chrome-plated zone means a zone that is first sandblasted and then chrome-plated, which creates a so-called orange peel surface. A surface that is also suitable can also be provided by means of ceramic coating and special treatment, i.e. by means of brush grinding.
Geeignete Begriffe zur Beschreibung und Definition von Oberflächen-Rauheiten gibt es in deutschen und amerikanischen Standards. Der wichtigste Begriff ist der «Mittenrauhwert» gemäss DIN («Roughness Height» ASA B 46,1-1962), das ist der arithmetische Mittelwert der Abstände des Istprofils vom mittleren Profil, gemessen senkrecht zum mittleren Profil. Der Mittenrauhwert (1) der Oberfläche mit der grösseren Rauhigkeit liegt zwischen 0,5 und 2,2 Micrometer (gm), vorzugsweise zwischen 0,6 und 2,2 j.Lm. Polierte Oberflächen dagegen haben einen Mittenrauhwert um 0,04gm. Die rauhe Oberfläche der Trennrolle weist zusätzlich folgende Rauhigkeitswerte auf:
Diese Begriffe sind schon in der DE-PS 2118 316 erläutert.These terms are already explained in DE-PS 2118 316.
Die Erfindung betrifft weiter ein Verfahren zum Anlegen eines laufenden Fadens auf die oben beschriebene Vorrichtung, dadurch gekennzeichnet, dass der Faden beim Anlegen mittels einer Fadenführung in Kontakt mit dem matten Teil der Trennrolle gebracht wird und nach Entfernung dieser Fadenführung auf dem polierten Teil der Trennrolle läuft.The invention further relates to a method for applying a running thread to the device described above, characterized in that the thread in contact with the matt part of the by means of a thread guide Separating roller is brought and after removal of this thread guide runs on the polished part of the separating roller.
Die erfindungsgemässe Vorrichtung ist überall dort verwendbar, wo eine Galette eingesetzt wird, die mindestens 360° umschlungen werden muss. Die Fadentrennrolle bewirkt dann, dass der auflaufende und ablaufende Faden voneinander getrennt auf der Rolle aufliegen. Dementsprechend betrifft die Erfindung des weiteren die Verwendung der oben erwähnten Vorrichtung in einem Schnellspinn-, Spinnstreck-, Schnellspinnstreck-, Streck-, Texturier-, Strecktexturier-, Spinnstrecktexturier- oder Wärmebehandlungsprozess.The device according to the invention can be used wherever a godet is used which has to be wrapped around at least 360 °. The thread separation roller then has the effect that the running and running thread lie separately from one another on the roller. Accordingly, the invention further relates to the use of the above-mentioned device in a quick spin, spin draw, quick spin draw, stretch, texturing, stretch texturing, spin stretch texturing or heat treatment process.
Die Erfindung wird nachstehend anhand einer Figur, welche die Verwendung der Vorrichtung in einem Spinnstreckprozess darstellt, noch näher erläutert.The invention is explained in more detail below with reference to a figure which shows the use of the device in a spin-stretching process.
Diese Spinnstreckanlage besteht aus einer angetriebenen Liefergalette 1 mit ihrer entsprechenden Trennrolle 2 und aus einer angetriebenen Abzugsgalette 3 mit ihrer entsprechenden Trennrolle 4. Erfindungsgemäss besitzt die Trennrolle 4 an ihrem freien Ende einen mattverchromten a und motorseitig einen glanzverchromten Teil b.This spin-stretching system consists of a driven delivery godet 1 with its corresponding
Ein Faden 5 kommt von einer Spinndüse und ist mittels eines Fadenaufnahmegeräts fünfmal auf der Liefergalette 1 angelegt. Zum weiteren Einziehen wird der Faden 5 über einen Fadenführer 6 auf der Abzugsgalette 3 und auf den mattverchromten Teil a der Trennrolle 4 mit mindestens 2-3 Umwindungen angelegt. Danach wird der Fadenführer 6 aus dem Fadenweg entfernt, was zur Folge hat, dass sich die Fadenwindungen auf der Abzugsgalette 3 nach hinten auf den glanzverchromten Teil b verlagern. Danach können weitere Umwindungen um die Abzugsgalette 3 aufgelegt werden, und der Faden 5 kann zum nächsten Rollenpaar oder zu einem Wickler oder zu einer Texturierzone hin weitergeleitet werden.A thread 5 comes from a spinneret and is placed five times on the delivery godet 1 by means of a thread take-up device. For further retraction, the thread 5 is placed over a
In der vorliegenden Beschreibung versteht man unter hoher Geschwindigkeit des Fadens eine Geschwindigkeit von mindestens 2500 m/ min.In the present description, the high speed of the thread means a speed of at least 2500 m / min.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84810177T ATE35294T1 (en) | 1983-04-22 | 1984-04-10 | DEVICE FOR TRANSFERRING HIGH SPEEDS TO A RUNNING THREAD AND METHOD OF APPLYING THIS THREAD. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH217083 | 1983-04-22 | ||
| CH2170/83 | 1983-04-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0124481A1 EP0124481A1 (en) | 1984-11-07 |
| EP0124481B1 true EP0124481B1 (en) | 1988-06-22 |
| EP0124481B2 EP0124481B2 (en) | 1995-06-28 |
Family
ID=4227528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84810177A Expired - Lifetime EP0124481B2 (en) | 1983-04-22 | 1984-04-10 | Apparatus for transmitting high velocity to a running fibre, and process for threading-up this fibre |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0124481B2 (en) |
| AT (1) | ATE35294T1 (en) |
| DE (1) | DE3472276D1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4431087C2 (en) * | 1994-09-01 | 1996-07-11 | Palitex Project Co Gmbh | Roller for driving bobbins on textile machines, in particular winding or twisting machines |
| TR200201627T2 (en) * | 1999-12-23 | 2002-10-21 | Acordis Industrial Fibers Gmbh | A process for bending polymers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1081401A (en) * | 1964-05-20 | 1967-08-31 | Ici Ltd | Improvements in or relating to the forwarding of synthetic polymeric filments and apparatus therefor |
| GB1095489A (en) * | 1964-08-25 | |||
| FR1464269A (en) * | 1964-12-23 | 1966-07-22 | Allied Chem | Method and apparatus for heat treating at a high speed a textile yarn at a controlled length |
| GB1264327A (en) * | 1968-07-05 | 1972-02-23 |
-
1984
- 1984-04-10 EP EP84810177A patent/EP0124481B2/en not_active Expired - Lifetime
- 1984-04-10 AT AT84810177T patent/ATE35294T1/en not_active IP Right Cessation
- 1984-04-10 DE DE8484810177T patent/DE3472276D1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0124481B2 (en) | 1995-06-28 |
| DE3472276D1 (en) | 1988-07-28 |
| ATE35294T1 (en) | 1988-07-15 |
| EP0124481A1 (en) | 1984-11-07 |
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