EP0110150B1 - Düsenspinn-Vorrichtung - Google Patents
Düsenspinn-Vorrichtung Download PDFInfo
- Publication number
- EP0110150B1 EP0110150B1 EP83110769A EP83110769A EP0110150B1 EP 0110150 B1 EP0110150 B1 EP 0110150B1 EP 83110769 A EP83110769 A EP 83110769A EP 83110769 A EP83110769 A EP 83110769A EP 0110150 B1 EP0110150 B1 EP 0110150B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide tube
- roller pair
- spinning device
- delivery roller
- jet spinning
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
- D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning 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
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
Definitions
- the invention relates to a nozzle spinning device with a pneumatic twist nozzle arranged after a pair of delivery rollers for taking over a non-spun yarn delivered by the pair of delivery rollers, and with a pair of outlet rollers downstream of the twist nozzle for taking over the spun yarn delivered by the twist nozzle.
- the yarn occasionally breaks in the nozzle spinning process, which is determined by an automatic monitoring system not belonging to the invention.
- the sliver feed is interrupted by the automatic system.
- a device at the end of a fiber drafting device is also known, in which a fiber sliver is transported through a conveying nozzle and fed into the gusset area of two take-off rollers with a guide tube.
- the device is used to feed the stretched belt to a rotary pot belt reel and thus to automate an activity that was originally carried out manually.
- the sliver is given a certain amount of wrong rotation in the conveying nozzle in order to give it more strength, but there is no spinning, in particular no nozzle spinning.
- Pneumatic conveying has very different requirements when it comes to nozzle spinning than when conveying a fine yarn compared to it between two draw-off rollers at the end of a fiber drafting system.
- well-defined exhaust air conditions must be observed when spinning a nozzle.
- the object of the invention is to provide a nozzle spinning device of the type mentioned which enables the automatic elimination of honeycomb fractures in a structurally uncomplicated manner, in which the spinning yarn is maintained at high speed by the discharge roller pair with the spun yarn maintained during operation without substantial throttling of the exhaust air flow is transferred.
- the swirl nozzle is connected to a pneumatic guide tube which projects so close to the pair of outlet rollers that the yarn is conveyed into the converging space of the pair of outlet rollers and is thereby automatically detected by the pair of outlet rollers, the between the circumferential mouth edge of the pneumatic guide tube and the resultant air outlet cross-section of the cylindrical surface of the pair of outlet rollers is essentially not smaller than a mouth cross-section of the pneumatic guide tube measured perpendicular to the direction of flow.
- the air outlet cross section mentioned is the smallest area between the mouth edge of the pneumatic guide tube and the opposite cylindrical surfaces of the pair of outlet rollers.
- Mouth cross-section is understood to mean the inner cross-section of the pneumatic guide tube in the area in front of its mouth.
- the advantages of the invention are that, on the one hand, the self-threading of the yarn into the pair of outlet rollers is solved in the simplest manner, and on the other hand, in the case of automation for eliminating thread breaks, only the easier transfer of the yarn from the outlet rollers to the winding device has to be mechanized.
- a nozzle spinning device 1 comprises one arranged next to a pair of delivery rollers 2 pneumatic swirl nozzle 3 with a directly connected pneumatic guide tube 4, which opens against a pair of outlet rollers 5.
- the pneumatic guide tube guides an air flow under normal aerodynamic conditions, i.e. H. without abrupt changes in cross-section and with a roughness that is common for pneumatic conveying pipes for fibers.
- the nozzle spinning device 1 is connected downstream of a drafting system 6, to which the pair of delivery rollers 2 also belongs.
- the drafting system 6 also comprises a middle pair of rollers 7 with guide straps 7.1 and 7.2, an input pair of rollers 8, as well as a second sliver condenser 9 arranged between the pair of rollers 7 and the pair of rollers 8 and a first sliver condenser 10 arranged in front of the pair of input rollers 8.
- the drafting unit 6 takes over a sliver 11, which runs into the drafting device in the direction of the arrow, and is drawn to a still unspun yarn, delivered by the pair of delivery rolls 2 and automatically taken over by the pneumatic swirl nozzle 3.
- Sliver 11 can be understood to mean a stretch belt or one or more combined flyer slits.
- this unspun yarn is spun into a finished yarn 12 taken over from the pair of outlet rollers 5.
- the yarn 12 leaves the pair of rollers 5 in the direction of the arrow and is finally taken over by a winding device (not shown).
- drafting arrangement 6 instead of the drafting arrangement 6 shown, another drafting arrangement can also be used, which is capable of delivering an unspun yarn at the same speed.
- the swirl nozzle 3 is known per se from DE-B-27 22 319.
- This swirl nozzle 3 is provided with a cylindrical surface 14 and a stop 15 in addition to receiving a sleeve 13 provided on the guide tube 4.
- the guide tube 4 can be fixed to the swirl nozzle 3 with a clamping ring (not shown) which comprises the two parts.
- a thread (not shown) can be provided for fixing the guide tube 4 to the swirl nozzle 3.
- the guide tube 4 has an inner wall 16, which has the same diameter as the outlet channel C at the connection 17 to the outlet channel C of the swirl nozzle 3.
- the swirl nozzle 3 and the guide tube 4 can also be produced in one piece (not shown) or the tube 4 can be composed of several parts (not shown).
- the outlet-side mouth edge 18 of the guide tube 4 protrudes so close to the outlet roller pair 5 that the yarn 12 is conveyed into the converging space 19 of the outlet roller pair 5 and is thereby grasped by the latter.
- the air outlet cross-section between the mouth edge 18 and the cylindrical surface of the outlet roller pair 5 must not be substantially less than the mouth cross-section measured above and perpendicular to the direction of flow. This condition applies to all variants to be described.
- the edge 20 in FIG. 4 becomes the edge 20.1, in FIG. 5 the edge 20.2, in FIG. 6 the edge 20.3, in FIG. 7 the edge 20.4, in FIG. 8 the edge 20.5 and in FIG. 9 to edge 20.6.
- the arrangement of the guide tube 4 must be such that its axis of symmetry (not shown) coincides with the thread path in the region of the outlet mouth.
- the wall of the guide tube 4 has an arc piece 21 in the region of the mouth, in FIG. 8 a deflection part 22 and in FIG. 9 a deflection part 23.
- the bow piece 21 and the deflecting parts 22 and 23 support the deflection of the flow and the yarn when it is drawn into the converging space 19.
- the curved piece 21 is formed by the bending of the guide tube 4 in the mouth region shown in FIG. 7.
- the deflecting parts 22 and 23 are flat plate parts which, as in Fig. 8 and. 9 shown, with an inclination angle a respectively. ⁇ are attached to a milled surface of the guide tube 4 in the mouth region.
- the measure of the angle of inclination a resp. ß depends on the inclination of the pair of outlet rollers 5 to the guide tube 4, and on the speed of the air flow and is determined empirically in practice.
- FIG. 9 shows a further measure influencing the direction of flow, in which the distance between the cylindrical surface of the outlet roller pair 5 and the mouth edge 18.6 is smallest in the lowest region, ie opposite the lower roller 5.1, and to the uppermost region of the edge 18.6 is gradually increasing.
- the air outlet in the lowest Area of the edge 18.6 be designed such that the yarn 12 is certainly not conveyed past the lower outlet roller 5.1 past the edge 20.6 into the open air, but into the converging space 19.
- the amount of air flowing through the guide tube 4 corresponds to the amount of air emitted by the swirl nozzle 3.
- the free yarn end of the yarn 12 is directed through the guide tube 4 against and into the converging space 19 so that it is removed from the pair of rollers 5 can be detected.
- the guide tube 4 can have a cone (not shown) that widens towards the pair of outlet rollers 5.
- This cone can have the same opening angle (not shown) over the entire length of the guide tube.
- the opening angle should not be significantly larger than the opening angle of the output channel.
- the aforementioned cross-section of the mouth is the cross-section of the mouth opening itself in FIG. 3, while in the remaining figures it is the cross-section still affecting the entire circumferential tube wall, the immediately following the obliquely cut mouth (FIG. 5) or the profiled mouth (FIG. 4 and 6 to 9) follows.
- One advantage of the favorable flow design of the guide tube is the possibility of damping the noise caused by the air outlet.
- a use, not shown, of the nozzle spinning device in a horizontal position is also possible.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH6311/82 | 1982-10-29 | ||
CH631182 | 1982-10-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0110150A1 EP0110150A1 (de) | 1984-06-13 |
EP0110150B1 true EP0110150B1 (de) | 1986-10-15 |
Family
ID=4307542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83110769A Expired EP0110150B1 (de) | 1982-10-29 | 1983-10-27 | Düsenspinn-Vorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US4593521A (it) |
EP (1) | EP0110150B1 (it) |
JP (1) | JPS5988932A (it) |
DE (1) | DE3366975D1 (it) |
IN (1) | IN161964B (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN168013B (it) * | 1985-10-31 | 1991-01-19 | Rieter Ag Maschf | |
JPS62117830A (ja) * | 1985-11-15 | 1987-05-29 | Murata Mach Ltd | 紡績糸の製造装置 |
DE3541219A1 (de) * | 1985-11-21 | 1987-05-27 | Schubert & Salzer Maschinen | Verfahren und vorrichtung zum verspinnen von fasern |
US4763822A (en) * | 1985-12-23 | 1988-08-16 | Fibron Machine Corporation | Paper tail nip threader |
DE3604819A1 (de) * | 1986-02-15 | 1987-08-20 | Bayer Ag | Foerderung von filamentverbaenden ueber weite foerderstrecken |
DE3638110C2 (de) * | 1986-11-07 | 1995-06-14 | Fritz Stahlecker | Vorrichtung zum pneumatischen Falschdrallspinnen |
WO1988010332A1 (en) * | 1987-06-19 | 1988-12-29 | Uzbexkoe Proizvodstvennoe Obiedinenie Textilnogo M | Device for making a self-twisted thread product |
CH692623A5 (de) | 1997-10-03 | 2002-08-30 | Rieter Ag Maschf | Spinnstrecktexturier- oder Strecktexturiermaschine. |
DE19813515A1 (de) * | 1998-03-26 | 1999-10-07 | Zinser Textilmaschinen Gmbh | Vorrichtung zum Bewegen eines Fadens zu einer durch eine Friktionswalze angetriebenen Spulhülse |
WO2017115096A1 (en) * | 2015-12-29 | 2017-07-06 | Arcelormittal | Air nozzle for guiding a steel strip at the exit from a device for shearing a steel sheet and computer assisted design file |
EP4015682A1 (de) * | 2020-12-18 | 2022-06-22 | Saurer Intelligent Technology AG | Arbeitsstelle einer luftspinnmaschine sowie fadenführungselement |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3094262A (en) * | 1960-11-25 | 1963-06-18 | Du Pont | Improved yarn handling sucker gun |
US3363041A (en) * | 1964-06-09 | 1968-01-09 | Uniroyal Inc | Method of jet crimping for texturing thermoplastic yarn |
GB1200669A (en) * | 1966-12-29 | 1970-07-29 | Mitsubishi Rayon Co | High speed spinning method and apparatus for manufacturing jet bundle yarn |
US3457610A (en) * | 1967-12-13 | 1969-07-29 | Monsanto Co | Treatment of filaments to develop latent bulkiness therein |
US3710460A (en) * | 1971-03-17 | 1973-01-16 | Du Pont | Yarn treating jet having a guide fastened to its outlet end |
GB1461572A (en) * | 1973-03-09 | 1977-01-13 | Masson Scott Thrissell Eng Ltd | Web guide sysstems |
GB1519587A (en) * | 1974-07-31 | 1978-08-02 | Heathcoat & Co Ltd | Bulked yarn |
DE2722319B2 (de) * | 1977-01-10 | 1981-01-15 | Toyo Boseki K.K., Osaka (Japan) | Vorrichtung zum pneumatischen Falschdrallspinnen |
US4173861A (en) * | 1977-11-11 | 1979-11-13 | Wwg Industries, Inc. | Method and apparatus for controlling twist in yarn |
FR2466527A1 (fr) * | 1979-09-28 | 1981-04-10 | Alsacienne Constr Meca | Dispositif automatique d'introduction d'un voile de fibres textiles dans un coiler |
JPS5860029A (ja) * | 1981-10-07 | 1983-04-09 | Toyoda Autom Loom Works Ltd | 仮撚空気ノズル |
US4457130A (en) * | 1981-10-13 | 1984-07-03 | Murata Kikai Kabushiki Kaisha | Air spinning nozzle unit |
-
1983
- 1983-09-17 IN IN1139/CAL/83A patent/IN161964B/en unknown
- 1983-10-03 US US06/538,678 patent/US4593521A/en not_active Expired - Fee Related
- 1983-10-06 JP JP58186080A patent/JPS5988932A/ja active Granted
- 1983-10-27 EP EP83110769A patent/EP0110150B1/de not_active Expired
- 1983-10-27 DE DE8383110769T patent/DE3366975D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0110150A1 (de) | 1984-06-13 |
IN161964B (it) | 1988-03-05 |
DE3366975D1 (en) | 1986-11-20 |
US4593521A (en) | 1986-06-10 |
JPS6242052B2 (it) | 1987-09-07 |
JPS5988932A (ja) | 1984-05-23 |
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