CN1724729A - Doffspinning head for airflow rotor spinning device - Google Patents
Doffspinning head for airflow rotor spinning device Download PDFInfo
- Publication number
- CN1724729A CN1724729A CN200510084777.1A CN200510084777A CN1724729A CN 1724729 A CN1724729 A CN 1724729A CN 200510084777 A CN200510084777 A CN 200510084777A CN 1724729 A CN1724729 A CN 1724729A
- Authority
- CN
- China
- Prior art keywords
- spinning head
- pharyngeal
- doffs
- spinning
- yarn
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a doffing spinneret for the pneumatic rotor spinner, consisting of a choanoid yarn steering region and a hollow cylindrical spinneret pharyngeal portion connected to the steering region. A multiline spiral rib-shaped apophysis is arranged in the steering region. The rib-shaped apophysis-on the doffing spinneret axial section- becomes steeper in the direction of the spinneret pharyngeal portion. The uplifts extend in the spinneret pharyngeal portion, wherein the rib-shaped apophysis extends basically in parallel with the doffing spinneret axis after reaching the spinneret pharyngeal portion.
Description
Technical field
The present invention relates to the spinning head that doffs that the air-flowing type rotor spinning device is used, it has an infundibulate yarn turn-around zone and a hollow cylinder spinning head that is connected on this turn-around zone is pharyngeal, have be arranged in the turn-around zone, be configured to multi-thread spiral rib shape protuberance, these protuberances-on the spinning head axial cross section that doffs-become steeper and extend to spinning head pharyngeal to the pharyngeal direction of spinning head.
Background technology
The air-flowing type rotor spinning device is used doffs spinning head to the stability of spun quality of yarn and spinning, and promptly Yarn break quantity all has significant impact.Verified at this, can not satisfy above-mentioned two requirements, the i.e. stability of yarn qualities and spinning all the time simultaneously with the same spinning head that doffs.
For obtaining good yarn qualities, verified such spinning head that doffs is fit to, promptly the yarn turn-around zone of spinning head or be configured to flat-satin or be provided with so-called helical structure.But should " spiral spinning head " have low spinning stability usually.
Therefore, for improving spinning stability, developed such spinning head that doffs, it is provided with recess or similar structures in the yarn turn-around zone, produces temporary transient so-called false twisting thus in the yarn that produces, and this false twisting helps spinning stability.But this recess has negative effect to yarn qualities usually.
Know a kind of spinning head that doffs that begins described type by DE 37 07 526 A1, it has multi-thread spiral rib shape protuberance in the yarn turn-around zone, these protuberances extend to the pharyngeal zone of spinning head and-on the spinning head axial cross section that doffs-more and more steeper.The pharyngeal no longer structuring of spinning head itself.This spinning head that doffs helps yarn qualities, but for the spinning stability be not enough.
Know a kind of spinning head that doffs by non-similar DE 39 34 166 C2, it has the peak shape structure in that spinning head is pharyngeal, and has the sickleshaped recess in the yarn turn-around zone.This spinning head that doffs is gratifying in spinning aspect stable, but can not satisfy the whole requirements about yarn qualities, because its interference is excessive.
Summary of the invention
Task of the present invention is, advises a kind of spinning head that doffs, and it is in harmonious proportion as far as possible about the requirement of yarn qualities and spinning stability.
This task is to solve like this, and promptly rib shape protuberance extends in spinning head is pharyngeal, and its middle rib shape protuberance extends with the spinning head axis that doffs abreast from arriving the pharyngeal beginning of spinning head approximately.
Produce power by the multi-thread helical structure in the infundibulate yarn turn-around zone, this masterpiece is used on the yarn, and the big I of power is influenced by rib shape protuberance.This has improved quality of yarn.On the other hand, the rib shape protuberance that is arranged in parallel in pharyngeal by spinning head makes temporarily in the yarn zone that is in transition stage to produce the false twisting that improves spinning stability in addition.Pharyngeal by making helical rib shape protuberance nothing interruptedly carry out the transition to spinning head, but pharyngeal parallel at spinning head with axis, avoided each interference.Therefore, the spinning head that doffs according to the present invention has obtained good compromise at yarn qualities and spinning aspect stable.
Three or four rib shape protuberances advantageously are set, promptly use three-way or quadruple screw.Rib shape protuberance should be at least at the pharyngeal rounding well of spinning head.At their " sharper " where necessary slightly of yarn turn-around zone.When rib shape protuberance may be favourable when the pharyngeal direction of spinning head is widened, because alleviated interference thus.Thus rib shape protuberance-in the pharyngeal cross section of spinning head-between vacated criss-cross yarn output channel.
Other advantage of the present invention as can be seen and feature from following description to the embodiment shown in several amplifications.
Wherein:
Fig. 1 passes spinning rotor and the axial section of the spinning head that doffs,
The view that more amplify of Fig. 2 for seeing to the spinning head direction of doffing along Fig. 1 arrow II,
Fig. 3 is the view of similar Fig. 2 under the different spinning head situation of doffing of structure.
The specific embodiment
Among Fig. 1 only the air-flowing type rotor spinning device shown in the part comprise a spinning rotor, it is made up of rotor disk 2 and the axle 3 that is pressed in the rotor disk.Axle 3 supports in a not shown manner and drives.Rotor disk 2 rotates in negative pressure cavity 4 when work, and wherein negative pressure cavity is made of rotor case 5, and rotor case is connected on the negative pressure source in a not shown manner.
Rotor disk 2 has the fiber sliding surface 7 that relative fiber collection tank 6 tapers are widened.In fiber collection tank 6, the hollow lumen of rotor disk 2 has its maximum diameter.Spinning rotor 1 can pass the open front of rotor case 5 and extract to the operating side of air-flowing type rotor spinning device direction.When work, this opening 8 of rotor case 5 and the open front side 9 of rotor disk 2 are together by removable backplate 10 sealings.When work, backplate 10 is close on the rotor case 5, is placed with a lip ring 11 between backplate and the shell.
Backplate 10 comprises the fiber input channel 12 that is positioned at outside the plan, and this passage starts from opening roller in a not shown manner and its inlet 13 points to fiber sliding surface 7.Effect by so-called negative pressure source, the fiber that is scattered by opening roller when work passes fiber input channel 12 directive fiber sliding surfaces 7, fiber slips into fiber collection tank 6 therefrom, in feeder, constitute fibrous ring and with known manner as the yarn shown in the chain-dotted line 14 axle 3 axially on output.Can discharge by the overflow gap on spinning rotor 1 open front side 9 15 by the conveying air that fiber input channel 12 sucks.
Spun yarn 14 is at first from coming out at least about the fiber collection tank 6 that is positioned at axle 3 vertical spinning rotor 1 normal planes, and subsequently by yarn output channel 16 according to outbound course A by unshowned delivery roller to output, and flow to same unshowned mound bobbins.It is 3 coaxial with the axle of spinning rotor 1 that yarn output channel 16 begins the zone at it at least, makes the yarn 14 that leaves fiber collection tank 6 at first carry out about 90 ° turning to, and wherein yarn 14 is done crank-type simultaneously and rotated in so-called normal plane.
The spinning head 17 that doffs is used for yarn 14 and comes out to forward to yarn output channel 16 from so-called normal plane, and this yarn output channel originates in curving funnel shaped yarn turn-around zone 18 substantially and carrying out the transition to hollow cylinder spinning head pharyngeal 20 on the interior plane 19 of normal plane.The spinning head packing ring 21 that the spinning head 17 that doffs is made by best pottery is formed, and this spinning head packing ring is bonded in the jet holder, and wherein jet holder 22 remains on the backplate 10 by holding magnet 23.
Here should illustrate that the crank shape rotary speed of yarn 14 is more much bigger than the speed of the yarn 14 on outbound course A.Because the crank shape rotation of the yarn 14 of output on plane 19, yarn 14 carries out the rotation of air ring shape from spinning head pharyngeal 20, and wherein yarn is pressed against on the wall 24 of spinning head pharyngeal 20 by centrifugal force.Can utilize this situation by special design wall 24.
As mentioned above, the spinning head 17 that doffs should be fit to the requirement of a plurality of part contradictions, promptly guarantees to spin the good quality of yarn 14 on the one hand, not too easily breaks on the other hand.Quality requirement passes through particular design yarn turn-around zone 18 substantially to be satisfied, and the wall 24 that the requirement of the stability of spinning is passed through substantially design spinning head pharyngeal 20 satisfies.By Fig. 2 this is described in detail below.
In yarn turn-around zone 18 the rib shape protuberance 25,26,27 and 28 of quadruple screw shape has been installed, these protuberances are rounding well all.They start from spinning head fringe region 29, and it is pharyngeal 20 to extend into spinning head, and wherein they are more and more steeper to pharyngeal 20 directions of spinning head, and the axis that is parallel to the spinning head 17 that doffs up to them in spinning head pharyngeal 20 extends.Under the embodiment situation according to Fig. 2, rib shape protuberance 25 to 28 is configured to approximately with identical width and does not have any wall 24 that interruptedly arrives spinning head pharyngeal 20 from spinning head edge 29 continuously.Helical structure in the spinning head turn-around zone 18 is used to obtain good yarn qualities, and the structure in the spinning head pharyngeal 20 is used to obtain good spinning stability.
Be mainly that according to the embodiment of Fig. 3 and the difference of the foregoing description be provided with rib shape protuberance 31,32,33 and 34 now, they broaden to pharyngeal 35 directions of spinning head.In spinning head pharyngeal 35, produced criss-cross approximately yarn output channel 36 thus.Therefore, the spinning head 30 that doffs of Xing Chenging has quadruple screw once more like this, and they extend with four " peaks ", 37 shapes at spinning head pharyngeal 35.The latter is rounding well, so that they can not produce excessive interference effect.
Claims (5)
1. the spinning head that doffs that the air-flowing type rotor spinning device is used, it is pharyngeal with the hollow cylinder spinning head that is connected on this turn-around zone that it has infundibulate yarn turn-around zone, have be arranged in the turn-around zone, be configured to multi-thread spiral rib shape protuberance, these protuberances-on the spinning head axial cross section that doffs-become steeper and extend to spinning head pharyngeal to the pharyngeal direction of spinning head, it is characterized in that rib shape protuberance (25-28; 31-34) extend in spinning head is pharyngeal, its middle rib shape protuberance is approximately from arriving spinning head pharyngeal (20; 35) begin and the spinning head (17 that doffs; 30) axis extends abreast.
2. according to the spinning head that doffs in the claim 1, it is characterized in that, be provided with three or four rib shape protuberance (25-28; 31-34).
3. according to the spinning head that doffs in claim 1 or 2, it is characterized in that rib shape protuberance (31-34) broadens to spinning head pharyngeal (35).
4. according to the spinning head that doffs one of in the claim 1 to 3, it is characterized in that rib shape protuberance (25-28; 31-34) at spinning head pharyngeal (20; 35) rounding well.
5. according to the spinning head that doffs in the claim 4, it is characterized in that, in the cross section of spinning head pharyngeal (35), vacated criss-cross yarn output channel (36) between the rib shape protuberance (31-34).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004036953.4 | 2004-07-21 | ||
| DE102004036953A DE102004036953B4 (en) | 2004-07-21 | 2004-07-21 | Garnabzugsdüse for an open-end rotor spinning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1724729A true CN1724729A (en) | 2006-01-25 |
Family
ID=35853263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510084777.1A Pending CN1724729A (en) | 2004-07-21 | 2005-07-21 | Doffspinning head for airflow rotor spinning device |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1724729A (en) |
| AT (1) | AT505070B1 (en) |
| CZ (1) | CZ302703B6 (en) |
| DE (1) | DE102004036953B4 (en) |
| TW (1) | TW200604399A (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0220546A1 (en) * | 1985-10-15 | 1987-05-06 | Maschinenfabrik Rieter Ag | Spinning device for open-end spinning |
| DE3707526A1 (en) * | 1987-03-09 | 1988-09-29 | Vnii Legkogo Textil Masch | UNIT FOR RINGLESS SPINNING |
| DE3934166C2 (en) * | 1989-10-12 | 1994-06-09 | Rieter Ingolstadt Spinnerei | Open-end spinning device |
| DE4010140A1 (en) * | 1990-03-29 | 1991-10-02 | Rieter Ag Maschf | SPIRAL BODY, ESPECIALLY FOR FLYER WINGS ON RASPING MACHINES |
| DE4224632B4 (en) * | 1992-07-25 | 2004-05-27 | Saurer Gmbh & Co. Kg | Device for open-end spinning |
| CZ281313B6 (en) * | 1994-01-11 | 1996-08-14 | Maschinenfabrik Rieter Ag | Yarn outlet |
| DE10228504A1 (en) * | 2002-06-20 | 2004-01-08 | Wilhelm Stahlecker Gmbh | Yarn take-off nozzle for open-end spinning devices |
| DE10244497A1 (en) * | 2002-09-25 | 2004-04-08 | Saurer Gmbh & Co. Kg | Jet entry into the yarn take-off channel, at an open-end spinner, has a spiral structure with at least two sectors where the spiral pitches differ to prevent an excessive yarn twist |
-
2004
- 2004-07-21 DE DE102004036953A patent/DE102004036953B4/en not_active Expired - Fee Related
-
2005
- 2005-06-21 TW TW094120596A patent/TW200604399A/en unknown
- 2005-06-29 AT AT0109705A patent/AT505070B1/en not_active IP Right Cessation
- 2005-07-13 CZ CZ20050449A patent/CZ302703B6/en not_active IP Right Cessation
- 2005-07-21 CN CN200510084777.1A patent/CN1724729A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AT505070A1 (en) | 2008-10-15 |
| DE102004036953A1 (en) | 2006-03-16 |
| AT505070B1 (en) | 2008-12-15 |
| CZ302703B6 (en) | 2011-09-07 |
| CZ2005449A3 (en) | 2006-03-15 |
| TW200604399A (en) | 2006-02-01 |
| DE102004036953B4 (en) | 2012-11-08 |
| TWI329144B (en) | 2010-08-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20060125 |