EP3108047A1 - Vorrichtung zum kräuseln multifiler fäden - Google Patents
Vorrichtung zum kräuseln multifiler fädenInfo
- Publication number
- EP3108047A1 EP3108047A1 EP15705793.6A EP15705793A EP3108047A1 EP 3108047 A1 EP3108047 A1 EP 3108047A1 EP 15705793 A EP15705793 A EP 15705793A EP 3108047 A1 EP3108047 A1 EP 3108047A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- stuffer box
- flow
- slats
- air
- 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.)
- Granted
Links
- 238000002788 crimping Methods 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 238000013022 venting Methods 0.000 description 10
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
Definitions
- the invention relates to a device for crimping multifilament threads according to the preamble of claim 1.
- a generic device for crimping multifilament threads is known from EP 0 784 109 Bl.
- Such devices for crimping multifilament threads are usually used in a melt spinning process in order to produce a continuous crimp on a synthetic multifilament yarn.
- the device has an injector device and an upsetting device, which are arranged one after the other in the thread running direction.
- the injector has a delivery channel with a thread inlet to guide the thread by means of an air flow in the adjacent compression device.
- the compression device has a stuffer box for receiving the thread, wherein the thread is dammed within the stuffer box, so that the individual filaments deposit within the stuffer box in loops and bows to a yarn plug. It is necessary that the air flow used for the promotion is discharged in an upper chamber portion of the stuffer box.
- a plurality of air discharge openings are formed in the upper chamber section, which extend in a slot shape between individual lamellae. It is customary, depending on the cross section of the stuffer box to arrange the slats radially or parallel side by side. The used to promote the thread Air flow can thus be derived laterally from the stuffer box. In principle, the problem arises here that individual filaments are more or less released from the plug assembly and are entrained into the air discharge openings. Hooking and filament breakage can not be ruled out.
- This object is achieved in that the wall portions of the stuffer box to form the air outlet openings each have a tangent to a chamber circle aligned flow edge.
- the invention has the particular advantage that no radial flow can form out of the center of the stuffer box. Regardless of where the air flow strikes the stuffer box wall, a diversion of the air flow at the flow box into the air exhaust openings is required. However, such a deflection of the air flow hinders the carrying of individual filaments. The forced through the flow edges of the wall sections Strömungsum- steering allows venting of the stuffer box with very little tendency for filament infeed into the air outlet openings.
- the development of the invention is preferably carried out, in which the flow edges of the wall sections are formed symmetrically side by side on the basis of a diameter of the chamber circle.
- the chamber circle is a geometric auxiliary size in order to bring the arrangement of the flow edges of the wall sections into a geometric mapping.
- the chamber circle for aligning the wall sections can thereby be smaller or equal in diameter than a cross-section. Select enveloping the compression chamber. The larger the chamber circle becomes in relation to the cross-sectional envelope of the stuffer box, the larger becomes a deflection angle for deflecting the air flow. The theoretical maximum angle is reached when the diameter of the chamber circle, at which align the flow edges, equal to a nominal diameter of the stuffer box cross section.
- the development of the invention is particularly advantageous, in which the wall sections of the compression chamber are formed by a plurality of fins, wherein the flow edges are formed on inner sides of the fins and wherein the air discharge openings each extend between two adjacent fins. This results in slit-shaped air discharge openings extending substantially over the length of the slats.
- the development is preferably used, in which the lamellae are arranged side by side overlapping to a round chamber cross-section of the stuffer box.
- the filaments of a thread can thus be deposited particularly uniformly on the surface of the yarn plug.
- the development of the invention is provided in which the fins have a plurality of bores in an inner wall area open an air discharge channel. These holes act as additional vents on the side surface of the fins, which derive the air from the compression chamber.
- the device according to the invention is fundamentally suitable for producing a crimping in a multifilament yarn independently of the polymer and yarn denier.
- the device can be used both in a single-stage and in a multistage production process of crimped yarns.
- the invention will be explained in more detail with reference to some embodiments of the device according to the invention with reference to the accompanying figures. They show:
- Fig. 1 shows schematically a longitudinal sectional view of a first embodiment of the device according to the invention
- FIG. 2 schematically shows a cross section of the stuffer box of the embodiment of FIG. 1
- Fig. 3 shows schematically a longitudinal sectional view of another embodiment of the device according to the invention
- FIG. 4 schematically shows a cross section of the stuffer box of the embodiment of FIG. 3rd
- Fig. 5 shows schematically several views of a stuffer box ventilation
- the device according to the invention for crimping multifilament threads has an injector device 1 and an upsetting device 8, which is preferably formed as a common structural unit.
- the injector Device 1 has a nozzle body 22 with a substantially centrally arranged conveyor channel 3, which forms a thread inlet 4 at a free end of the nozzle body 22. At the opposite end of the conveyor channel 3 opens into a stuffer box 9 of the compression device eighth
- the delivery channel 3 is assigned a compressed air supply 2, through which a preferably heated compressed air is introduced into the delivery channel 3.
- the compressed air supply 2 is formed by a compressed air connection 7, a compressed air channel 6 and at least two Injektorbohrept 5.1 and 5.2.
- the injector bores 5.1 and 5.2 open in such a way to each other into the delivery channel 3, so that a compressed air introduced via the compressed air channel 6 in the Injektorbohronne 5.1 and 5.2 compressed air inside the randomlyka- 3 leads to a swirling flow.
- a multifilament yarn is sucked into the conveying channel 3 and guided by means of the twisted air flow to the compression device 8 by the suction generated at the thread inlet 4.
- the compression device 8 is formed in this embodiment by a stuffer box 9, which has an upper chamber portion 10.1 and a lower chamber portion 10.2.
- a stuffer box 9 which has an upper chamber portion 10.1 and a lower chamber portion 10.2.
- the upper chamber portion 10.1 of the stuffer box 9 is taken in addition to the illustration in Fig. 2 reference.
- the upper chamber section 10. 1 has a plurality of lamellae 14, which form a round chamber cross-section of the stuffer box 9 in a scaly arrangement.
- the fins 14 are aligned with an inner side which form a flow edge 21 each tangent to a chamber circle 16 and form between each see a slot-shaped air outlet opening 13.
- the flow edge 21 of the fins 14 are symmetrical in an overlapping arrangement based on a diameter of the chamber circle 16 arranged and aligned.
- the air discharge openings 13 extending between the lamellae 14 open into tangentially oriented discharge channels 23, the chamber wall 11 formed by the lamellae 14 penetrating in a slot shape from inside to outside.
- the diameter of the chamber circle 16 is indicated by the capital letter D.
- a chamber circle diameter is selected which is smaller than a cross-sectional envelope of the stuffer box 9. Basically, the angular position of the fins 14 and the number of fins 14 and thus the selected chamber circle diameter is shown only as an example.
- the fins 14 are held by a plate carrier 15 to form the chamber wall 11.
- the plate carrier is
- the housing 18 surrounds the lamellae 14 at a distance in order to remove the escaping air from the chamber section 10. to be able to record chamber 9.
- the housing 18 has not shown vents or vent ports for removal of the used air. 1, the free ends of the lamellae 14 open into the lower chamber section 10. 2 of the stuffer box 9.
- the lower chamber section 10. 2 of the stuffer box is channel-shaped in a guide body 24 and bounded by a chamber outlet (not illustrated here) ,
- a multifilament yarn is conveyed via the delivery channel 3 of the injector device 1 into the stuffer box 9 of the stuffer device 8.
- the stuffer box 9 is closed for a short time, so that forms a yarn plug within the stuffer box 9.
- the yarn plug fills the entire chamber cross section of the stuffer box 9, wherein the formation of the yarn plug begins in the upper chamber section 10.1. So that the conveying air of the thread from the injector device 1 does not lead to the blowing out of the yarn plug, the conveying air in the upper chamber section 10.1 of the stuffer box 9 is removed laterally via the air discharge openings 13 and the discharge channels 23 between the lamellae 14.
- the air duct for venting the compression chamber is schematically indicated by flow arrows between adjacent fins 14.
- the air flow entering into the stuffer box 9 has a swirl sense, which is clockwise in the clockwise direction. tet is.
- the exhaust air flow generated by the air release opening 13 is directed counter to the twist sense, so that when the air flow strikes the flow edge 21, a flow deflection begins.
- advantageous direct from inside to outside air currents can be avoided.
- the flow deflection at the flow edges 21 of the lamellae 14 advantageously significantly impedes the retraction of individual filaments. Thus, a much more stable and uniform crimping of the filaments could be achieved. Fraying of the yarn plug inside the stuffer box is avoided.
- the number of slats, the shape of the slats and the angular arrangement of the slats is exemplified. It is essential here that the air outlet openings and discharge channels have a tangential orientation for deflecting the blast flow through the flow edges within the chamber wall 11.
- the cross section of the stuffer box 9 does not necessarily have to be round. So also oval or square cross sections are possible. A reduction in the number of slats would in particular reduce the costs of the compression device. For example, at least three lamellae, which are arranged in triangular form relative to one another, could form a venting section of the stuffer box.
- FIGS. 3 and 4 show a further exemplary embodiment of the device according to the invention for crimping multifilament threads in several views.
- FIG. 3 schematically shows a longitudinal sectional view
- FIG. 2 shows a cross-sectional view of the compression chamber.
- the embodiment of FIGS. 3 and 4 is substantially identical to the embodiment of FIGS. 1 and 2, so that only the differences are explained below and otherwise reference is made to the above description.
- the chamber wall 11 of the upper chamber portion 10.1 of the stuffer box 9 is formed by a small number of fins 14.
- the tangential orientation of the flow edges 21 of the lamellae 14 is determined by a chamber circle 16 which is substantially equal in diameter to a cross-sectional envelope of the stuffer box 9. This results in an extreme position of the fins 14, which requires the greatest possible deflection of the air flow at the flow edges 21.
- the fins 14 Due to the small number of fins 14 for forming the chamber wall 11, a corresponding number of air outlet openings 13 are distributed over the chamber cross section. In order nevertheless to contain an intensive venting of the stuffer box 9, the fins 14 have a plurality of holes 17 in an inner wall area. As in particular from the presentation 4, the flow edge 21 forms a boundary of the stuffer box 9, so that the bores 17 contained therein contribute directly to the venting of the stuffer box 9.
- the bores 17 in the lamellae 14 open into a discharge channel 23 which extends between adjacent lamellae 14 and connects the air discharge opening 13 with an environment.
- FIGS. 3 and 4 The function of the embodiment of FIGS. 3 and 4 is identical to the aforementioned embodiment, so that reference is made to the above description at this point.
- the upper chamber section 10. 1 of the compression chamber 9 is formed within the compression device 8 by a plurality of individual lamellae 14, which are arranged next to one another and overlapping to form a chamber wall 11.
- a vent body In principle, however, it is also possible to form the chamber portion 10.1 of the stuffer box 9 by a vent body.
- Fig. 5.1 and 5.2 an embodiment of a vent body 19 is shown, as it would be used for example in the embodiment of FIGS. 1 and 2 for forming the upper chamber portion 10.1 of the stuffer box 9.
- the vent body 19 is shown in a side view and in Fig. 5.2 in a cross-sectional view.
- the vent body 19 is cylindrical and encloses an inner chamber portion 10.1 of a compression chamber 9.
- the chamber wall 11 is divided by a plurality of axially extending separating slots 20 into a plurality of wall sections 12.
- the dividing slots 20 penetrate the chamber wall 11 in such a way that the wall sections 12 each have a flow edge 21 aligned tangentially to a chamber circle 16 for forming air discharge openings 13.
- the flow edges 21 formed by the wall sections 12 thus effect a deflection of the exhaust air flow emerging from the interior of the stuffer box 9 at the air discharge openings 13.
- the dividing slots 20 are delimited on an inlet side 25 of the venting body 19, so that division of the chamber wall 11 into a plurality of wall sections 12 is limited to a partial length of the venting body 19.
- the invention thus also extends to compression devices whose upper chamber portion of the compression chamber is formed from a vent body with appropriate formation of wall sections or of a plurality of fins.
- the devices shown in the embodiments can be used advantageously for the crimping of multifilament yarns.
- This multifilament threads can directly in a Melt spinning process or be crimped in a multi-stage manufacturing process.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014002318.4A DE102014002318A1 (de) | 2014-02-19 | 2014-02-19 | Vorrichtung zum Kräuseln multifiler Fäden |
PCT/EP2015/053052 WO2015124497A1 (de) | 2014-02-19 | 2015-02-13 | Vorrichtung zum kräuseln multifiler fäden |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3108047A1 true EP3108047A1 (de) | 2016-12-28 |
EP3108047B1 EP3108047B1 (de) | 2018-04-04 |
Family
ID=52573658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15705793.6A Not-in-force EP3108047B1 (de) | 2014-02-19 | 2015-02-13 | Vorrichtung zum kräuseln multifiler fäden |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170081790A1 (de) |
EP (1) | EP3108047B1 (de) |
JP (1) | JP2017506294A (de) |
CN (1) | CN105992842B (de) |
DE (1) | DE102014002318A1 (de) |
WO (1) | WO2015124497A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021104959A1 (de) | 2019-11-29 | 2021-06-03 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum kräuseln eines multifilen fadens |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032273B (de) * | 1955-11-08 | 1958-06-19 | Zwirnerei | Gehaeuselose Druckluftturbine, insbesondere fuer Falschdrallerzeugung bei Textilfaeden |
US3490869A (en) * | 1966-11-17 | 1970-01-20 | Columbian Carbon | Vortex reactor for carbon black manufacture |
DE2144479A1 (de) * | 1971-09-06 | 1973-03-22 | Neumuenster Masch App | Verfahren und vorrichtung zum kraeuseln von faeden |
CH527931A (de) * | 1970-12-16 | 1972-09-15 | Neumuenster Masch App | Vorrichtung zum Kräuseln von Fäden |
GB1592646A (en) * | 1976-12-01 | 1981-07-08 | Ici Ltd | Yarn treatment |
DE7723587U1 (de) * | 1977-07-28 | 1979-01-25 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Blastexturiervorrichtung |
JPS54151653A (en) * | 1978-05-16 | 1979-11-29 | Teijin Ltd | Crimping method and apparatus of yarn |
US4399597A (en) * | 1980-11-19 | 1983-08-23 | Akzona, Incorporated | Method and apparatus for production of textured yarn |
DE3562784D1 (en) * | 1984-05-30 | 1988-06-23 | Rieter Ag Maschf | Apparatus for texturing continuous filament yarns |
CN1005199B (zh) * | 1985-01-19 | 1989-09-20 | 巴马格·巴默机器制造股份公司 | 丝传送和变形用的喷嘴 |
BE905590A (fr) * | 1985-10-19 | 1987-02-02 | Barmag Barmer Maschf | Procede d'insertion d'un fil dans une filiere de texturisation. |
EP0282815B1 (de) * | 1987-03-16 | 1991-02-27 | Maschinenfabrik Rieter Ag | Texturierdüse für Endlosfilament-Fäden |
JP2646302B2 (ja) * | 1991-04-17 | 1997-08-27 | 帝人株式会社 | 流体押し込みノズル |
DE59201194D1 (de) * | 1991-10-26 | 1995-02-23 | Barmag Barmer Maschf | Vorrichtung zum Stauchkräuseln synthetischer Filamentfäden. |
EP0571322B1 (de) * | 1992-05-20 | 1996-09-25 | Maschinenfabrik Rieter Ag | Vorrichtung zum kontinuierlichen Kräuseln von thermoplastischen Fäden |
JPH0665825A (ja) * | 1992-08-14 | 1994-03-08 | Unitika Ltd | 加熱流体押込式捲縮加工装置 |
JP3097362B2 (ja) * | 1992-12-15 | 2000-10-10 | 東レ株式会社 | 糸条の捲縮加工装置 |
DE59402589D1 (de) * | 1993-07-02 | 1997-06-05 | Rieter Ag Maschf | Vorrichtung zum Texturieren von Endlosfilament-Fäden |
CH691387A5 (de) * | 1994-08-18 | 2001-07-13 | Barmag Barmer Maschf | Texturierdüse. |
CN1078636C (zh) | 1996-01-12 | 2002-01-30 | 里特机械公司 | 由长丝构成的不同颜色的单纱生产彩色纱线的方法和设备 |
ATE313652T1 (de) * | 1998-08-27 | 2006-01-15 | Saurer Gmbh & Co Kg | Vorrichtung und verfahren zum stauchkräuseln eines synthetischen fadens |
AT411467B (de) | 2000-01-12 | 2004-01-26 | Sml Maschinengesellschaft Mbh | Texturierdüse |
CN100362153C (zh) * | 2001-07-03 | 2008-01-16 | 诺马格有限及两合公司 | 用于填塞卷曲的装置 |
TWI237074B (en) * | 2004-03-24 | 2005-08-01 | Taiwan Textile Res Inst | Fluffing device for yarn crimping and creasing |
DE102004043773A1 (de) * | 2004-09-10 | 2006-04-13 | Saurer Gmbh & Co. Kg | Keramikdüse und Vorrichtung zum Stauchkräuseln eines synthetischen multifilen Fadens |
DE102008024079A1 (de) * | 2007-06-15 | 2008-12-18 | Oerlikon Textile Gmbh & Co. Kg | Texturierdüse |
-
2014
- 2014-02-19 DE DE102014002318.4A patent/DE102014002318A1/de not_active Withdrawn
-
2015
- 2015-02-13 WO PCT/EP2015/053052 patent/WO2015124497A1/de active Application Filing
- 2015-02-13 CN CN201580008928.7A patent/CN105992842B/zh not_active Expired - Fee Related
- 2015-02-13 JP JP2016553409A patent/JP2017506294A/ja active Pending
- 2015-02-13 EP EP15705793.6A patent/EP3108047B1/de not_active Not-in-force
- 2015-02-13 US US15/119,592 patent/US20170081790A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP3108047B1 (de) | 2018-04-04 |
JP2017506294A (ja) | 2017-03-02 |
CN105992842A (zh) | 2016-10-05 |
CN105992842B (zh) | 2018-09-28 |
WO2015124497A1 (de) | 2015-08-27 |
DE102014002318A1 (de) | 2015-08-20 |
US20170081790A1 (en) | 2017-03-23 |
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