WO2022253680A1 - Dispositif pour enrouler une nappe de fils - Google Patents

Dispositif pour enrouler une nappe de fils Download PDF

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Publication number
WO2022253680A1
WO2022253680A1 PCT/EP2022/064269 EP2022064269W WO2022253680A1 WO 2022253680 A1 WO2022253680 A1 WO 2022253680A1 EP 2022064269 W EP2022064269 W EP 2022064269W WO 2022253680 A1 WO2022253680 A1 WO 2022253680A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
winding
threads
godet
group
Prior art date
Application number
PCT/EP2022/064269
Other languages
German (de)
English (en)
Inventor
Denis Bauer
Jen Supra
Original Assignee
Oerlikon Textile Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Priority to CN202280039056.0A priority Critical patent/CN117396417A/zh
Publication of WO2022253680A1 publication Critical patent/WO2022253680A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/02—Stationary rods or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/14—Pulleys, rollers, or rotary bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/313—Synthetic polymer threads
    • B65H2701/3132—Synthetic polymer threads extruded from spinnerets

Definitions

  • the invention relates to a device for winding up a group of threads, in particular in a melt-spinning process for the production of synthetic threads, according to the preamble of claim 1.
  • a generic device for winding a sheet of threads is known for example from WO 2007/085274 A1.
  • the threads extruded from a polymer melt are usually extruded through a large number of spinnerets in parallel next to one another and drawn off and guided as a group of threads through godet systems.
  • the threads are guided parallel to each other with a small thread spacing as a sheet of threads. So thread distances between the threads in the range of 4 - 6 mm are common.
  • the most ten devices have several winding positions in order to wind each individual thread in a Wi ckelstellen into a coil. Because of the width of the spools, such winding points are at a greater distance from one another, so that the group of threads has to be divided up between the following winding points after it has run off a run-off godet.
  • a run-off godet for guiding the group of threads is arranged laterally next to the winding points, so that the group of threads are essentially separated from a horizontal plane with a strong deflection at the thread guide means upstream of the winding points and are distributed to the winding points.
  • Freely rotatable deflection rollers are preferably used as the thread guiding means.
  • the godet is arranged essentially in the middle of the winding points, so that the group of threads is spread open by the thread guide means after it has run off the godet to allow the threads to enter the winding positions.
  • stationary thread guides are used as thread guiding means, since the entanglement of the threads is significantly lower. So it is customary to select the height of the godet above the winding point in such a way that the threads receive only relatively small loops when they come into contact with the thread guides. Thread wraps that are too large inevitably lead to different thread tensions when winding the threads.
  • the godet must therefore have a sufficient height so that no impermissible loopings occur on the thread guides.
  • Devices of this type for winding up a group of threads therefore preferably have a height-adjustable run-off godet in order to enable operation at the start of the process.
  • this object is achieved in that the thread guide means distributed over the winding points are formed partly by deflection rollers and partly by thread guides that are held stationary. It has turned out to be advantageous if the deflection rollers are rotatable, in particular freely rotatable. It has also turned out to be advantageous if the deflection rollers are driven.
  • the invention has the particular advantage that spreading the crowd of threads is also possible with larger angles of wrap on the thread guide means.
  • those winding points in which the upstream thread guiding means require a relatively strong deflection of the incoming thread can be formed by a freely rotatable or driven deflection roller.
  • the thread guide means where relatively low thread looping occur due to the spreading of the sheet of threads form denillion by stationary held Fa.
  • the combination of freely rotatable (or driven) deflection rolls and stationary thread guides as thread guide means of the winding points thus has the particular advantage that the godet can be kept at a relatively small distance above the winding points. This allows very compact arrangements to be implemented for winding up a group of threads.
  • the distribution of the deflection rollers and the thread guides on the winding points is advantageously determined by an infeed angle, which is set by a thread guide between the thread guide means and the godet. It is thus possible to determine permissible wraps around the thread guide means, which does not lead to any significantly excessive wrap-around friction in the respective thread.
  • the stationary thread guides are assigned to the winding points in which the threads can be guided between the thread guide means and the godet with the infeed angle >20°.
  • the infeed angle is formed denank here between a horizontal line connecting the thread guide means and the thread spanned between the respective thread guide means and the godet.
  • the freely rotatable or driven deflection rollers are assigned to the winding points in which the threads can be guided between the thread guide means and the godet with the infeed angle ⁇ 20°.
  • the device according to the invention for winding up a group of threads is therefore particularly suitable for producing fully drawn threads due to a compact arrangement of the godet.
  • the development of the invention is provided, in which the godet is arranged downstream of a godet group for stretching and relaxing the yarn sheet, which is held by a godet carrier above the machine frame of the winding points, the godet and the godet group being aligned transversely to the winding spindle.
  • the development of the invention is preferably carried out, in which the godet is held at a working height of a maximum of 2 m above an operating gear.
  • the development of the invention is provided in which the godet is assigned two groups of winding positions which are mirror-symmetrical with identical distribution of the deflection rollers and thread guides in separate machine frames. This means, for example, that 24 or 32 threads can be wound into coils at the same time.
  • the device according to the invention for winding up a group of threads in particular in a melt spinning process for the production of synthetic threads, is explained in more detail below using some exemplary embodiments with reference to the accompanying figures.
  • FIG. 1 shows a schematic view of a first exemplary embodiment of the device according to the invention for winding a group of threads
  • Fig. 2 shows a schematic detail of the view of the exemplary embodiment from Fig. 1
  • Fig. 3 shows a schematic side view of a further exemplary embodiment of the device according to the invention for winding a group of threads
  • Fig. 4 shows a schematic side view of a further exemplary embodiment of the device according to the invention for winding up a sheet of threads.
  • Fig. 2 shows a schematic detail of the view of the exemplary embodiment from Fig. 1
  • Fig. 3 shows a schematic side view of a further exemplary embodiment of the device according to the invention for winding a group of threads
  • Fig. 4 shows a schematic side view of a further exemplary embodiment
  • Fig. 1 is a side view of a first embodiment of the device according to the invention for winding a sheet of threads is shown schematically represents.
  • the exemplary embodiment shows a total of eight winding positions 1.1 to 1.8, which are arranged next to one another in a machine frame 2.
  • the winding positions 1.1 to 1.8 extend along a winding spindle 3.1, which are held in a cantilever manner on a winding turret 9 which is mounted such that it can rotate.
  • a coil 12 is wound on the circumference of the winding spindle 3.1.
  • the winding spindle 3.1 is driven by a spindle drive 11.1.
  • each winding point 1.1 to 1.8 has a traversing unit.
  • the traversing units 5.1 to 5.8 are arranged side by side on the machine frame 2 and each have one or more traversing thread guides, which reciprocate the relevant thread of the winding position 1.1 to 1.8 within a Spu lenwidth.
  • the traversing units 5.1 to 5.8 are assigned a plurality of thread guide means 6.1 to 6.8 at a distance in an upper region of the machine frame 2.
  • the thread guiding means 6.1 to 6.8 each form an inlet for the threads to the individual winding points 1.1 to 1.8.
  • the thread guiding means 6.1 to 6.8 are explained in more detail below.
  • a pressure roller 4 is assigned to the traversing units 5.1 to 5.8.
  • the pressure roller 4 is arranged on the machine frame 2 via a movable roller carrier 22 .
  • the pressure roller 4 extends over the entire number of winding spindles
  • a second projecting coil spindle 3.2 is arranged on the winding turret 9.
  • the winding spindle 3.2 is offset by 180° to the winding spindle 3.1 on the winding turret 9.
  • the Spulspin spindles 3.1 and 3.2 each have a winding tube 13 per winding station 1.1 to 1.8.
  • the Spulspin del 3.2 is coupled to a spindle drive 11.2.
  • the spool turret 9 can be actively rotated by a turret drive 10 on the machine frame 2 in order to give away the spool spindles 3.1 and 3.2 for a spool change.
  • the winding spindles 3.1 and 3.2 can be guided alternately into an operating area and a changing area.
  • the winding spindle 3.1 is held in the operating range in order to wind incoming threads of a thread sheet 8 into bobbins 12.
  • the winding positions 1.1 to 1.8 of the device shown in FIG. 1 are used to continuously wind a freshly extruded sheet of threads into coils in a melt spinning process. In such melt spinning processes, the sheet of threads is guided with the aid of godets. So in Fig. 1 is a last godet before the winding points
  • the godet is referred to as a so-called run-off godet 7, which guides a sheet of threads 8 with partial wrapping around the circumference of a godet jacket. Since the threads of the group of threads 8 are guided to each other on the circumference of the departure Ga lette 7 with a relatively small distance between threads, a spreading and distribution of the threads of the group of threads 8 to the winding positions 1.1 to 1.8 is required.
  • the thread guide means 6.1 to 6.8 of the godet 7 are arranged immediately, so that depending on the position of the thread guide
  • a middle group of the thread guide means 6.3 to 6.6 is formed by a stationary thread guide 15 in each case.
  • the thread guiding means 6.1 and 6.2 as well as 6.7 and 6.8 each form an outer group of thread guiding means, which are designed as deflection rollers 14.
  • At each of the thread guiding means 6.1 to 6.8, one thread of the thread group 8 is guided with un ent loopings.
  • the looping of the thread is determined by a feed angle of the threads 8 .
  • the feed angle extends between a horizontal line formed by the thread guide means 6.1 to 6.8 and a piece of thread between the respective thread guide means 6.1 to 6.8 and the run-off godet 7.
  • the feed angles are marked ai to a8 in this example.
  • a thread of the group of threads 8 is guided in the winding position 1.1 on the deflection roller 14 of the thread guide means 6.1 with an infeed angle oh.
  • a thread of the group of threads 8 is guided on the deflection roller 14 of the thread guide means 6.2 with an infeed angle a 2 .
  • the inflow angles of the middle group of thread guide means 6.3 to 6.6, which are each formed by the thread guide 15, are identified by the code letters a 3 to a 6 .
  • the inflow angles a 3 to oi 6 are each greater in magnitude than the inflow angles oh and a 2 as well as a 7 and a 8 in the outer groups of the thread guide means 6.1 and 6.2 and 6.7 and 6.8, which are formed by the deflection rollers 14.
  • the freely rotatable or driven order guide rollers 14 in the outer winding positions 1.1, 1.2, 1.7 and 1.8 thus allow a high thread looping in the feed.
  • the leadership of the yarn sheet 8 is done by the godet 7 in a thread running plane parallel to the Wi ckelstellen 1.1 to 1.8.
  • the godet 7 is aligned parallel to the winding spindle 3.1.
  • An exemplary embodiment is shown in FIG. 3 for this purpose.
  • the godet 7 is aligned transversely to the winding spindle 3.1.
  • 8 different runoff points are generated on the circumference of the runoff godet 7 when the sheet of threads are spread out on each of the threads of the sheet of threads.
  • the feed angles OM to a 3 on the thread guiding means 6.1 to 6.8 remain unchanged.
  • the particular advantage of the exemplary embodiments of the device according to the invention shown in FIGS. 1 and 3 is that the godet 7 can be arranged at a working height that is accessible to an operator.
  • the working height A is shown in FIG. 3 as an example.
  • the godet 7 can be easily installed at a working height of max. 2 m above a service course 23 arrange.
  • the run-off galette 7 can advantageously be arranged firmly on a Ga letten nie.
  • the device according to the invention for winding up a group of threads is preferably suitable for winding completely drawn threads into spools in a melt-spinning process.
  • Fig. 4 a further embodiment of the inventive Shen device is shown schematically in Fig. 4 and 5 in several views.
  • the Ausch is shown for example in a side view and in Fig. 5 in a front view.
  • a group of threads 8 with a large number of threads is wound through two groups of winding positions 1.1 to 1.12 and 1.1' to 1.12' to form spools 12 and 12'.
  • the winding positions 1.1 to 1.12 are in a first machine frame 2 and the winding positions 1.1' to 1.12' in a mirror-symmetrical second machine frame 2'. arranged next to each other.
  • the machine frames le 2 and 2 ' are identical to each other and formed only mirror-symmetrical with their devices.
  • Each machine frame 2, 2' has two winding spindles and one winding turret.
  • the winding points 1.1 to 1.12 and 1.1' to 1.12' are each identical to the above-mentioned exemplary embodiments according to FIGS.
  • the frame 24 carries the godet carrier 17 with a godet group 16 which are driven by godet drives 20 .
  • the godet group 16 is formed by several individually driven godets 16.1 to 16.5.
  • the galette group 16 includes, in addition to the discharge ga lette 7, five further galettes 16.1 to 16.5, which are designed to be heated for stretching and relaxing the group of faculties.
  • a wetting agent 18 and a swirling device 19 are arranged in the thread path between the godet group 16 and the godet 7 in order to create a thread cohesion on the multifilament threads of the thread group 8 in each case to manufacture. Then the threads of the group of threads are distributed in two groups to the winding positions 1.1 to 1.12 and the winding positions 1.1' to 1.12', not shown here.
  • the thread guides 6.1 to 6.12 and 6.1' to 6.12' assigned to the winding positions 1.1 to 1.12 and 1.1' to 1.12' are formed partly by deflection rollers 14 and partly by thread guides 15.
  • the outer thread guide means 6.1 to 6.3 and 6.10 to 6.12 each form two outer groups, each of which is formed by guide rollers 14 in order.
  • the thread guide means 6.4 to 6.9 represent a middle group, which are each formed by thread guides 15.
  • the mirror-symmetrically opposite thread guide means 6.1 to 6.12' have the identical distribution of the deflection rollers 14 and the thread guide 15.
  • U-shaped ceramic guides or pigtail thread guides are preferably used as stationary thread guides 15 .
  • the freely rotatable or driven deflection rollers 14, on the other hand, preferably have a circumferential thread guide groove in order to deflect the threads with as little friction as possible.
  • the number of winding points and the distribution of the thread guide means in the winding points with thread guide and deflection rollers are exemplary. In principle, however, there is the possi probability of dividing the thread guide means into two groups depending on the position of the godet. Thus, in the case of an off-centre godet, a front group of thread guides could be formed by thread guides and a rear group of thread guides by deflection rollers. What is important here is the flow of the threads from the run-off godet to the winding points and the infeed angle that is set.

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  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un dispositif permettant d'enrouler une nappe de fils, en particulier dans le cadre d'un processus de filage par fusion pour fabriquer des fils synthétiques. La nappe de fils est enroulée, en une pluralité de sites d'enroulement (1 1 - 1.8), en bobines (12), qui sont disposées dans un bâti de machine (2) le long d'une broche de bobinage (3.1). Chacun des sites d'enroulement (1.1 - 1.8) présente un ensemble va-et-vient (5.1 - 5.8) destiné à poser un des fils sur une bobine (12), un parmi plusieurs moyens de guidage de fil (6.1 – 6.8) étant associé à chacun des ensembles va-et-vient (5.1- 5.8) pour séparer la nappe de fils, et la nappe de fils étant acheminée jusqu'aux moyens de guidage de fil par au moins une galette de défilage. L'invention vise à permettre d'effectuer la répartition et l'étalement des fils avec le moins de frottement possible et de manière homogène. A cet effet, selon l'invention les moyens de guidage de fil (6.1 – 6.8) répartis sur les sites d'enroulement (1.1 – 1.8) sont formés en partie par des rouleaux de renvoi (14) à rotation ou entraînement libre et en partie par des guide-fils (15) maintenu fixes.
PCT/EP2022/064269 2021-06-04 2022-05-25 Dispositif pour enrouler une nappe de fils WO2022253680A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280039056.0A CN117396417A (zh) 2021-06-04 2022-05-25 用于卷绕丝线组的设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021002878 2021-06-04
DE102021002878.3 2021-06-04

Publications (1)

Publication Number Publication Date
WO2022253680A1 true WO2022253680A1 (fr) 2022-12-08

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ID=82117686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/064269 WO2022253680A1 (fr) 2021-06-04 2022-05-25 Dispositif pour enrouler une nappe de fils

Country Status (3)

Country Link
CN (1) CN117396417A (fr)
DE (1) DE102022112853B3 (fr)
WO (1) WO2022253680A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007085274A1 (fr) 2006-01-26 2007-08-02 Oerlikon Textile Gmbh & Co. Kg Dispositif pour filer à chaud et mettre en bobine des fils synthétiques
EP2184246A2 (fr) * 2008-11-06 2010-05-12 TMT Machinery, Inc. Enrouleur récepteur
EP2407408A2 (fr) * 2010-07-13 2012-01-18 TMT Machinery, Inc. Dispositif de bobinage de fils à filaments
EP2548830A2 (fr) * 2011-07-22 2013-01-23 TMT Machinery, Inc. Enrouleur de filature

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10235936A1 (de) 2002-08-06 2004-02-19 Barmag Ag Vorrichtung zum Spinnen und Aufwickeln
DE502004000883D1 (de) 2003-02-21 2006-08-10 Saurer Gmbh & Co Kg Vorrichtung zum herstellen und aufwickeln synthetischer fäden

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007085274A1 (fr) 2006-01-26 2007-08-02 Oerlikon Textile Gmbh & Co. Kg Dispositif pour filer à chaud et mettre en bobine des fils synthétiques
EP2184246A2 (fr) * 2008-11-06 2010-05-12 TMT Machinery, Inc. Enrouleur récepteur
EP2407408A2 (fr) * 2010-07-13 2012-01-18 TMT Machinery, Inc. Dispositif de bobinage de fils à filaments
EP2548830A2 (fr) * 2011-07-22 2013-01-23 TMT Machinery, Inc. Enrouleur de filature

Also Published As

Publication number Publication date
DE102022112853B3 (de) 2022-10-27
CN117396417A (zh) 2024-01-12

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