EP0539808A1 - Dispositif de frisage à boîte de bourrage pour filaments synthétiques - Google Patents
Dispositif de frisage à boîte de bourrage pour filaments synthétiques Download PDFInfo
- Publication number
- EP0539808A1 EP0539808A1 EP92117693A EP92117693A EP0539808A1 EP 0539808 A1 EP0539808 A1 EP 0539808A1 EP 92117693 A EP92117693 A EP 92117693A EP 92117693 A EP92117693 A EP 92117693A EP 0539808 A1 EP0539808 A1 EP 0539808A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- nozzle
- flow channel
- section
- flow
- 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
Images
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 upsetting synthetic filament threads according to the preamble of patent claim 1.
- This device is known from EP-189099-B.
- the flow channel downstream of a nozzle needle, in which the filament threads are guided together with the pressure medium flowing out, is formed with a cylindrical, in particular circular-cylindrical, cross section and with a constant diameter over its length.
- the known texturing nozzle has proven itself particularly in machines for carrying out a continuous spin-stretch texturing method and is used for crimping synthetic filament threads made of polyester, in particular polyethylene terephthalate, PA6, PA6.6 or PP, at stretching speeds behind the spinning stage of 1800-3000 m / min applied industrially with great success. At this speed, however, a limit of the production speed is reached because the thread tension on the bundle of filaments conveyed by the nozzle decreases and any thread entanglement leads to a winder formation on the draw godets and to uncertainties in the production process.
- the object of the invention is therefore, the device for Compress crimping according to the preamble of claim 1 in such a way that the specified technical upper limit for a safe exercise of crimping is shifted further upwards according to the known, continuous spin-stretch texturing method, and that with a further increased thread speed there is still sufficient tensile force is exerted by the nozzle on the running thread. It should be taken into account that the high quality already achieved with regard to thread crimping, consistency and dissolvability of the thread plug is retained and the pressure medium consumption and pressure is as low and economical as possible.
- the flow channel advantageously has a length of more than 30 and preferably more than 40 times the channel cross section at its narrowest point.
- the advantage of a very small opening angle of the flow channel according to claim 4 is that with a very narrow flow channel cross-section and the wall friction that is necessarily to be taken into account, the supersonic speed is maintained even with a large overall length of the flow channel without flow breaks. This means that it is possible to advantageously avoid the occurrence of a surge in the flow.
- the impulse and energy transfer to the filament threads takes place with a particularly high efficiency.
- Claim 6 specifies a preferred embodiment of the flow channel.
- Claim 7 specifies a further dimensioning rule, the result of which is a limited consumption of the pressure medium, which is particularly economical for the achievable thread speed.
- the thread inlet channel of the high-speed nozzle is particularly advantageously formed in a nozzle needle according to claim 8. This has the advantage of a better and easier adjustment of the blowing channel to adjust the thread tension.
- the advantage of the constructive design of the nozzle downstream of the flow channel according to claim 9 is that the nozzle is simple to set up and maintain, in particular it can be cleaned of thread remnants.
- Another advantage lies in the annular slot flow formed between the truncated cone of the nozzle needle and the nozzle body, which has a radial component and which the filament threads after the thread inlet channel and the Blow duct tightly encloses on all sides.
- the cross section of the ring slot for the emerging pressure medium can be adjusted by changing the axial setting of the nozzle needle and nozzle body.
- the opening angle on the nozzle body and / or the cone of the nozzle needle according to claims 11 to 13 in connection with the axial adjustability of the nozzle needle according to claim 10 can be achieved that the narrowest point of the flow channel is axially displaced and the pressure conditions at the beginning of Flow channel can be adjusted so that the blowing nozzle sucks the filament threads at the inlet of the thread inlet channel, or that the blowing nozzle blows out small amounts of the pressure medium through the thread inlet channel.
- the nozzle it is advantageously designed such that it can be switched over by the axial adjustment of the nozzle needle from the suction mode when the filament threads are put into an operating state with the nozzle easily blowing out pressure medium at the thread inlet channel.
- the filament threads can simply be inserted into the blow nozzle, which is particularly necessary when starting up the texturing device and after a thread break on the drawing godets, after changing the spinneret, etc. and greatly reducing the handling times.
- a crimping device is shown in longitudinal section, the essential parts with that from the EP-189099-B known device corresponds (Fig. 17 and Fig. 19). It consists of the nozzle body 1 with an insert body 3 containing the flow channel 2, as well as the inlet-side nozzle needle 4 and the stuffer box 5 flanged on the outlet side of the nozzle body 1 and take-off roller 6 for the thread stopper 7 formed in the stuffer box 5 (FIG. 2).
- the nozzle needle 4 contains the central thread inlet channel 8 and the pressure medium supply. It is screwed into the insert body 3 in an axially adjustable manner with a fine thread 9 and is sealed by cover 10 against pressure medium losses.
- the pressure medium supply for example heated compressed air, water vapor, preferably superheated water vapor at a pressure of about 7 to 12 bar, takes place through distribution channel 11 in the nozzle body 1.
- the distribution channel 11 with the blowing channels 15 is via axial channels 12, annular groove 13 in the cover 10 and radial bores 14 connected, which open at the downstream end of the nozzle needle 4 in the common flow channel 2 for the pressure medium and the filament threads.
- the flow channel 2 consists of a first section 2.1, with the length L 1 which tapers in the flow direction up to a narrowest cross section 2.2 and then widens conically in a second section 2.3 with a length L 2, with a very small opening angle alpha (Fig. 4), which is preferably less than 2.0 °.
- the stuffer box 5 is flanged to the nozzle body 1 with a flange 35 and screws 16. On the inlet side, it initially has a section with a conical channel widening 17 from the cross section of the flow channel 2 into the circular cylindrical or slightly conical cross section of the stuffer box 5.
- the cone angle beta of the channel widening 17 is preferably approximately 10 °.
- An area follows in the direction of flow, which is permeable in the radial direction, so that the pressure medium can be separated from the filament threads in the stuffer box 5.
- This area consists of closely arranged ribs 18 which are formed by the incisions 19 in the stuffer box wall 20 and which are so closely adjacent that parts of the thread plug 7 formed do not get caught on the ribs 18.
- the outlet-side end of the stuffer box 5 is circular-cylindrical or slightly conical to form a thread plug 7 with a circular cross section.
- a semicircular profiled, continuously adjustable take-off roller 6 which interacts with a second roller, not shown.
- the device Over the entire length of the device, it has a threading slot 21 which can be opened and closed during operation by means (not shown here) for inserting the filament threads so that individual filaments are not blown out of the slot 21.
- a threading slot 21 which can be opened and closed during operation by means (not shown here) for inserting the filament threads so that individual filaments are not blown out of the slot 21.
- Fig. 2 shows a modified compression curling chamber in the open state.
- the longitudinally divided nozzle needle 4 is fastened here to the nozzle body 1 by screws 36.
- the pressure medium supplied through radial channel 22 on the nozzle body 1 in the direction of arrow 23 flows through a conical annular slot channel 24 into the flow channel 2 and meets there the filament threads fed through the thread inlet channel 8, which are compressed in the stuffer box 5 to the thread plug 7 and transported away by the take-off roller 6 and roller 6.1 will.
- the crimping device shown is divided into two halves 1.1 and 1.2 for cleaning or threading the filament threads in the longitudinal direction and one half 1.2 is moved to close in the direction of arrow 25, centering cams 26 on one nozzle half 1.2 in associated center holes 27 of the other nozzle half 1.1 intervene and operate locking means not shown.
- a pressure chamber 28 with pressure medium in the direction 30 By acting on a pressure chamber 28 with pressure medium in the direction 30, the two nozzle halves 1.1, 1.2 are pressed together, sealed in the longitudinal direction and a radial outflow of the working medium is prevented.
- Fig. 3 shows the cross section of the compression chamber in the area of the pressure medium supply 22 and the annular chamber 29, which opens into the annular slot channel 24 on the outer circumference of the nozzle needle 4.
- the flow channel 2 in the insert body 3 of the nozzle body 1 of the stuffer box crimping device is shown enlarged. It initially tapers in a first section 2.1 in the form of a nozzle, to a point 2.2 where the channel has its narrowest cross section and the flow reaches the speed of sound.
- the nozzle needle 4 projects axially into the first section 2.1 inside. It is axially adjustable in the direction of arrow 34.
- the filament threads are fed through the central channel 8 and the pressure medium is supplied through the conically tapering annular slot 24 formed between the nozzle needle 4 and insert body 3. Downstream of the narrowest point 2.2 there is an increase in the flow cross section of the flow channel 2 in section 2.3.
- the size of the widening angle alpha is fundamentally also dependent on the quality of the mechanical processing of the channel wall and is produced with the poorer processing quality of the flow channel 2 with the larger cone angles alpha.
- the length L2 of the flow channel section 2.3 is dimensioned depending on the diameter of the flow channel 2 at the point of the narrowest cross section 2.2.
- the length of the section with the smaller opening angle is preferably more than 8 times as long as the length of the first section with the larger opening angle.
- the last section of the flow channel is the channel widening 17 with a significantly larger cone angle beta, beta being approximately 5 to 15 °. This section is flowed through by subsonic flow after the occurrence of small compression surges.
- the length L D of this section results from the diameter of the flow channel 2.3, at its end, the cone angle beta and the intended diameter of the stuffer box 5.
- FIGS. 5 and 6 show the flow channel 2 in the region of the mouth of the axially adjustable nozzle needle 4.
- the conical annular slot channel 24 is formed in the nozzle body 1 with a cone angle rho. It merges at point 31 into the section 2.1 of the flow channel 2 which tapers in the shape of a nozzle and which has the narrowest flow cross section at point 2.2.
- the nozzle needle 4 is formed with a cone angle gamma which differs from the cone angle rho in the nozzle body 1 and is smaller than this. As a result, the nozzle needle 4 can be displaced axially into the flow channel by the length s beyond the point 31.
- a narrowest cross section of the annular slot channel 24 can thus be placed in front of the downstream end of the nozzle needle 4 at the point 31. This influences whether and in what amounts pressure medium 4 emerges upstream through the thread inlet channel 8 of the nozzle needle.
- the nozzle needle 4 is designed in a modification of the situation in FIG. 5 in such a way that the surface is formed from two conical surfaces, the upstream one of which has an opening angle gamma and the downstream one of which Has opening angle epsilon.
- the annular slot channel 24 and the pressure conditions in the annular slot channel 24 and in the thread inlet channel 8 can also be influenced such that the blowing nozzle does not blow backwards.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4135383 | 1991-10-26 | ||
DE4135383 | 1991-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0539808A1 true EP0539808A1 (fr) | 1993-05-05 |
EP0539808B1 EP0539808B1 (fr) | 1995-01-11 |
Family
ID=6443498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92117693A Expired - Lifetime EP0539808B1 (fr) | 1991-10-26 | 1992-10-16 | Dispositif de frisage à boîte de bourrage pour filaments synthétiques |
Country Status (5)
Country | Link |
---|---|
US (1) | US5579566A (fr) |
EP (1) | EP0539808B1 (fr) |
CN (1) | CN1026136C (fr) |
DE (1) | DE59201194D1 (fr) |
RU (1) | RU2052550C1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0982418A2 (fr) * | 1998-08-27 | 2000-03-01 | B a r m a g AG | Dispositif et procédé pour le frisage à boíte de bourrage d'un fil synthétique |
US6826813B2 (en) | 2000-03-01 | 2004-12-07 | Saurer Gmbh & Co. Kg | Method and apparatus for stuffer box crimping an advancing multifilament yarn |
WO2014131641A1 (fr) * | 2013-02-28 | 2014-09-04 | Oerlikon Textile Gmbh & Co. Kg | Dispositif de transport et guidage pneumatique d'un fil multifilaments |
WO2015124497A1 (fr) * | 2014-02-19 | 2015-08-27 | Oerlikon Textile Gmbh & Co. Kg | Dispositif de frisage de fils multifilaments |
WO2021104959A1 (fr) | 2019-11-29 | 2021-06-03 | Oerlikon Textile Gmbh & Co. Kg | Appareil de sertissage d'un fil multifilament |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0761855A1 (fr) * | 1995-08-23 | 1997-03-12 | Maschinenfabrik Rieter Ag | Procédé et dispositif pour le frisage à boîte de bourrage |
DE19605675C5 (de) * | 1996-02-15 | 2010-06-17 | Oerlikon Heberlein Temco Wattwil Ag | Verfahren zum aerodynamischen Texturieren sowie Texturierdüse |
TW449627B (en) | 1998-03-03 | 2001-08-11 | Heberlein & Co Ag | Yarn processing device and use thereof |
GB9917069D0 (en) * | 1999-07-22 | 1999-09-22 | Fibreguide Ltd | Yarn treatment jet |
US6543106B1 (en) | 1999-10-25 | 2003-04-08 | Celanese Acetate, Llc | Apparatus, method and system for air opening of textile tow and opened textile tow web produced thereby |
US6253431B1 (en) | 1999-10-25 | 2001-07-03 | Celanese Acetate Llc | Air opening jet apparatus |
AU2002305174A1 (en) * | 2001-04-13 | 2002-10-28 | Johns Hopkins University School Of Medicine | Methods and compositions for identifying disease genes using nonsense-mediated decay inhibition |
US7534379B2 (en) * | 2004-06-25 | 2009-05-19 | Celanese Acetate Llc | Process of making cellulose acetate tow |
ITMI20081112A1 (it) * | 2007-08-02 | 2009-02-03 | Oerlikon Textile Gmbh & Co Kg | Dispositivo per arricciare filoni di fibre sintetiche |
CN102828294B (zh) * | 2011-06-16 | 2015-04-15 | 南通醋酸纤维有限公司 | 填塞箱卷曲机耐磨夹板装置 |
US8623248B2 (en) | 2011-11-16 | 2014-01-07 | Celanese Acetate Llc | Methods for producing nonwoven materials from continuous tow bands |
CN104451993B (zh) * | 2014-11-20 | 2017-01-25 | 苏州金纬化纤工程技术有限公司 | 膨化变形长丝喷嘴系统 |
EP3337920B1 (fr) * | 2015-06-30 | 2019-08-14 | Heberlein AG | Pièce de mise en forme pour un noyau de filière, noyau de filière et dispositif de frisage pour frisage par bourrage, kit d'équipement, dispositif d'arrêt et élément de mise en place, et procédé correspondant |
CN107829176B (zh) * | 2017-11-17 | 2019-12-03 | 武汉纺织大学 | 一种用于纱线超光洁处理的瓣合式装置的应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1785158A1 (de) * | 1968-08-17 | 1971-03-18 | Merck Patent Gmbh | Duese zum Abziehen eines Fadens oder mehrerer Faeden |
DE2423476A1 (de) * | 1973-05-15 | 1974-12-05 | Scam Engineering S R L | Verfahren zur texturierung von thermoplastischen garnen, vorrichtung zur durchfuehrung des verfahrens und hierdurch erhaltene verbesserte garne |
DE2753705A1 (de) * | 1977-12-02 | 1979-06-13 | Metallgesellschaft Ag | Stauchkraeuselvorrichtung |
DE8022113U1 (de) * | 1980-08-19 | 1981-12-24 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Blastexturiervorrichtung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3296677A (en) * | 1963-05-20 | 1967-01-10 | Eastman Kodak Co | Crimping apparatus and process |
US3281913A (en) * | 1964-08-10 | 1966-11-01 | Eastman Kodak Co | Apparatus and method for handling yarn bundles |
US4315355A (en) * | 1977-06-27 | 1982-02-16 | Techniprises Limited | Strand crimping treatment |
DE7723587U1 (de) * | 1977-07-28 | 1979-01-25 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Blastexturiervorrichtung |
IL76069A0 (en) * | 1984-11-05 | 1985-12-31 | Du Pont | Yarn texturing jet |
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 |
EP0189099B1 (fr) * | 1985-01-19 | 1989-01-11 | B a r m a g AG | Tuyère pour la texturation d'un fil |
CN1006910B (zh) * | 1985-07-20 | 1990-02-21 | 巴马格·巴默机器制造股份公司 | 用于丝变形的喷嘴 |
BE905590A (fr) * | 1985-10-19 | 1987-02-02 | Barmag Barmer Maschf | Procede d'insertion d'un fil dans une filiere de texturisation. |
DE3627513C2 (de) * | 1986-08-13 | 1996-09-19 | Barmag Barmer Maschf | Düse zum Texturieren eines laufenden Fadens |
WO1989001539A1 (fr) * | 1987-08-15 | 1989-02-23 | Deutsche Institute für Textil- und Faserforschung | Dispositif de torsion de fils |
-
1992
- 1992-10-16 DE DE59201194T patent/DE59201194D1/de not_active Expired - Fee Related
- 1992-10-16 EP EP92117693A patent/EP0539808B1/fr not_active Expired - Lifetime
- 1992-10-23 RU RU9292004366A patent/RU2052550C1/ru active
- 1992-10-26 CN CN92112420A patent/CN1026136C/zh not_active Expired - Fee Related
- 1992-10-26 US US07/966,723 patent/US5579566A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1785158A1 (de) * | 1968-08-17 | 1971-03-18 | Merck Patent Gmbh | Duese zum Abziehen eines Fadens oder mehrerer Faeden |
DE2423476A1 (de) * | 1973-05-15 | 1974-12-05 | Scam Engineering S R L | Verfahren zur texturierung von thermoplastischen garnen, vorrichtung zur durchfuehrung des verfahrens und hierdurch erhaltene verbesserte garne |
DE2753705A1 (de) * | 1977-12-02 | 1979-06-13 | Metallgesellschaft Ag | Stauchkraeuselvorrichtung |
DE8022113U1 (de) * | 1980-08-19 | 1981-12-24 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Blastexturiervorrichtung |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0982418A2 (fr) * | 1998-08-27 | 2000-03-01 | B a r m a g AG | Dispositif et procédé pour le frisage à boíte de bourrage d'un fil synthétique |
EP0982418A3 (fr) * | 1998-08-27 | 2003-04-16 | B a r m a g AG | Dispositif et procédé pour le frisage à boíte de bourrage d'un fil synthétique |
US6826813B2 (en) | 2000-03-01 | 2004-12-07 | Saurer Gmbh & Co. Kg | Method and apparatus for stuffer box crimping an advancing multifilament yarn |
WO2014131641A1 (fr) * | 2013-02-28 | 2014-09-04 | Oerlikon Textile Gmbh & Co. Kg | Dispositif de transport et guidage pneumatique d'un fil multifilaments |
US9631300B2 (en) | 2013-02-28 | 2017-04-25 | Oerlikon Textile Gmbh & Co. Kg | Device for pneumatically conveying and guiding a multifilament thread |
WO2015124497A1 (fr) * | 2014-02-19 | 2015-08-27 | Oerlikon Textile Gmbh & Co. Kg | Dispositif de frisage de fils multifilaments |
WO2021104959A1 (fr) | 2019-11-29 | 2021-06-03 | Oerlikon Textile Gmbh & Co. Kg | Appareil de sertissage d'un fil multifilament |
Also Published As
Publication number | Publication date |
---|---|
EP0539808B1 (fr) | 1995-01-11 |
CN1074960A (zh) | 1993-08-04 |
RU2052550C1 (ru) | 1996-01-20 |
US5579566A (en) | 1996-12-03 |
CN1026136C (zh) | 1994-10-05 |
DE59201194D1 (de) | 1995-02-23 |
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