CN1712584B - Gas flow spinning cup - Google Patents
Gas flow spinning cup Download PDFInfo
- Publication number
- CN1712584B CN1712584B CN 200510080917 CN200510080917A CN1712584B CN 1712584 B CN1712584 B CN 1712584B CN 200510080917 CN200510080917 CN 200510080917 CN 200510080917 A CN200510080917 A CN 200510080917A CN 1712584 B CN1712584 B CN 1712584B
- Authority
- CN
- China
- Prior art keywords
- nickel
- gas flow
- diamond dust
- fiber
- spinning cup
- 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 - Fee Related
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
- D01H4/04—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 imparting twist by contact of fibres with a running surface
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
- D01H4/10—Rotors
Abstract
In an open-end spinning rotor with a fiber sliding surface and a fiber collecting channel, where the surfaces contacting the fibers have a nickel-diamond coating consisting of a nickel dispersion layer incorporating diamond grains of specific size, the coating (at least in new condition) contains diamond particles projecting from the nickel dispersion layer, which contact the fibers and have a size of 0.1-0.4 mu m.
Description
Technical field
The present invention relates to a kind of gas flow spinning cup with a fiber sliding surface and a fibre deposition groove.
Background technology
The surface of gas flow spinning cup contact fiber must can obtain good spinning conditions on the one hand when fibrous material is least identical, wear-resistant under the service life that requires on the other hand.Such as known to persons of ordinary skill, the surface of contact fiber at first is meant a fiber sliding surface and a fibre deposition groove.Press known way, fiber is to be fed into the fiber sliding surface facing to gas flow spinning cup, slips at this place's fiber and form a fibrous ring under fibre deposition groove and the rotation at gas flow spinning cup in groove, is drawn by the yarn that fibrous ring produces.The gas flow spinning cup that uses in the reality, its fibre guide surface are to be equipped with one deck nickel-diamond dust-coating, and this coating is made up of the nickel dispersion layer of particles of silicon carbide by embedding.The thickness of nickel dispersion layer is normally between 20 and 50 μ m, and the diamond dust granularity is generally between 1 to 4 μ m.Described German patent DE 29 09 739 C2 promptly are examples.
Particles of silicon carbide brings the fibre guide face certain roughness, the yarn value (Garnwerte) that in fact latter is guaranteeing aspect the quality all fibres material in spinning.But for the some fibre raw material, particularly very dirty raw material, this more coarse surface makes the very strong impurity of generation in the fibre deposition groove zone, thereby causes the yarn fracture.Therefore the past partly uses uncoated gas flow spinning cup or only uses smooth surface boronation or nickel plating this applicable cases, and consequently the fibre deposition groove seldom stains, but the also remarkable variation of the yarn value that obtains simultaneously.
Just a kind of gas flow spinning cup of one deck nickel-diamond dust-coating is arranged also is known to the fiber sliding surface, yet is no emery grit in its fibre deposition groove.For example German patent DE 33 39 852A1 are described promptly is this gas flow spinning cup.Here the granularity of the particles of silicon carbide of Xuan Zeing is 1 to 6 μ m, and it makes the fiber sliding surface seem very coarse, thereby makes the fiber of feeding obtain good stretching.This smooth fibre deposition groove because of no particles of silicon carbide is because contamination seldom provides stable service condition, but the obvious variation of yarn value.
The other fibrous material, become the reason of preferred more smooth relatively fiber sliding surface here such as original slide relatively poor synthetic fiber or viscose.Because these fibrous materials seldom stain, be to need the more coarse fibre deposition groove that can obtain good yarn value here.Coarse relatively fibre deposition groove realizes that good yarn value is because fiber is linked into the yarn end well.
Therefore advise among German patent DE 197 43 597 A1, make the fibre deposition groove must be more coarse, be coated with the nickel-diamond dust-coating that has different diamond dust granularities with multilayer overlappingly than fiber sliding surface.At this, following nickel-diamond dust-coating has bigger particles of silicon carbide.In the case, nickel-diamond dust-coating that less particles of silicon carbide arranged at top especially in the fibre deposition groove relative wear get soon because the yarn of Xing Chenging and fibrous ring should be located the surface and particularly be rich in rodent there.Otherwise, on the fiber sliding surface, seldom produce wearing and tearing, so this place maintains the nickel-Buddha's warrior attendant layer of sand with less particles of silicon carbide granularity always.Along with the time progress produces a kind of like this gas flow spinning cup, its fibre deposition groove is coarse in the fiber sliding surface.
A similar effect proposes in DE 197 13 359 A1.According to this suggestion, when forming nickel-Buddha's warrior attendant layer of sand, should make granularity play this effect, promptly on the fiber sliding surface, produce less grit closeness in than fibre deposition groove.Under the identical coating layer thickness of essence, the roughness that produces in the fibre deposition groove should be greater than the fiber sliding surface like this.
At last, German patent DE 198 22 266 A1 we can say and proposed a suggestion of compromise to a certain extent, with a granularity is diamond dust bearing bed that thicker granularity is 5 to 10 μ m of thin working lining covering of 1 to 2.8 μ m, wherein particles of silicon carbide can be described as and is meshed, and working lining it is said that " fixing " is on bearing bed like this.In this design, fiber sliding surface and fibre deposition groove all carry out the same treatment of nickel-diamond dust-coating, but the coating kind, particularly coating layer thickness selected are interpreted as half-way house (seeing that the 26th of second hurdle among DE 198 22 265 A1 walks to 31 row).
The gas flow spinning cup of all described so far band nickel-diamond dust-coatings all has obvious particles of silicon carbide greater than 1 μ m granularity.
Summary of the invention
The present invention is fully at large from the gas flow spinning cup with a fiber sliding surface and a fibre deposition groove, their surface that contacts with fiber has nickel-diamond dust-coating, and this coating itself is formed by embedding in accordance with regulations the nickel dispersion layer of granularity particles of silicon carbide.
Concerning this gas flow spinning cup, the contradiction that should solve is at present, for good yarn quality, requires to have a coarse fibre deposition groove on the one hand, in order to make the fibre deposition groove have big as far as possible insensitivity, require the roughness at this place more small on the other hand to contamination.
The solution of this task is interpreted as half-way house, it is characterized in that, in the nickel-diamond dust-coating of new state, this is 0.1 to 0.4 μ m from nickel dispersion layer particles of silicon carbide granularity outstanding and that contact with fiber at least.
Inner characteristic of the present invention is, the granularity of diamond dust now just so far about 1/10th of the order of magnitude of general granularity.This just with respect to, especially when the percentage by volume of particles of silicon carbide only account for the nickel dispersion layer 20% to 40% the time, still have to a certain degree roughness and enough smooth.Contradiction described in the above-mentioned task does not all solve naturally, but obtains relaxing with acceptable form in the reality.This shows, utilizes various features of the present invention to set up a kind of relation between the contamination of yarn test value and fibre deposition groove, i.e. the relation of runnability.The surface that little granularity can obtain " meticulous ", still less stain is though and the yarn test value is lower than optimum value known in the art, complete acceptable.
Owing to stipulate in design of the present invention in cup sufficiently long service life, the granularity that the nickel dispersion layer has the thickness of 20 to 40 μ m and do not contact the diamond dust of fiber also is 0.1 to 0.4 μ m.After gas flow spinning cup is through the long duration of runs, can guarantee that still yarn quality does not change to a great extent like this.
For aforesaid situation, it is the situation that the fibre deposition groove should be more coarse than fiber sliding surface, the prior art of having quoted of associated can used the following modification of doing simultaneously of the present invention according to DE 197 43 497 A1 therewith, be that the nickel dispersion layer is made up of one deck thicker bottom and the thin cover layer of one deck, here the granularity of tectal particles of silicon carbide is 0.1 to 0.4 μ m, and the diamond dust of bottom has obviously bigger particle.The bottom diamond dust granularity that for example 20 to 50 μ m are thick can be 1 to 4 μ m, and describedly only is arranged in cover layer than small grain size, for example about 5 μ m of its thickness.Because the cover layer in the wearing and tearing that produce during spinning, fibre deposition groove was worn in shorter running time, and the cover layer on the fiber sliding surface is kept above the life-span of gas flow spinning cup always.
Other advantages of the present invention and feature can be learnt from the explanation of following several embodiment.
Description of drawings
Shown in the figure:
The very large diagrammatic sketch of the axial cross section of a gas flow spinning cup of Fig. 1;
Fig. 2 is according to a very large view in fibre guide surface of the gas flow spinning cup with a nickel-diamond dust-coating of the present invention;
Fig. 3 is similar in appearance to Fig. 2, according to the view of gas flow spinning cup under new state of another design of the present invention;
Fig. 4 gas flow spinning cup is through after certain running time, according to the view of nickel-diamond dust-coating of Fig. 3.
The specific embodiment
Gas flow spinning cup 1 shown in Figure 1 generally contains the axle 3 that a rotor disk 2 is fixedlyed connected with.The not contactless sealing of lid of expression of the unlimited front 4 of rotor disk 2 towards the operating surface of gas flow spinning cup and in the running by a figure.
During the spinning operation, fiber to be spinned is fed on the fiber sliding surface 5 of rotor disk 2 via a not shown fiber input channel by the front of opening wide 4.A fibre deposition groove 6 is widened in 5 tapers of fiber sliding surface, and the latter constitutes the maximum gauge of gas flow spinning cup 1.Fiber is subjected to the atwirl centrifugal action of rotor disk 2 and slides in the fibre deposition groove 6 on fiber sliding surface 5, there since the fiber of input in groove and close and form a fibrous ring, the yarn of generation is promptly drawn by fibrous ring.
These surfaces of fibre guide surface 7, particularly fiber sliding surface 5 and fibre deposition groove 6 dot in Fig. 1.Shown in the diagrammatic sketch that Fig. 2 extremely amplifies, there is one deck nickel-diamond dust-coating on this surface 7.Known nickel-diamond dust-coating 8 is made up of one deck nickel dispersion layer 9 itself, and it represents with hacures in the drawings and have thickness d that described nickel dispersion layer has the emery grit 10 and 10 ' of embedding.At least these granularities outstanding and emery grit 10 that contact with fiber from nickel dispersion layer 9 are 0.1 to 0.4 μ m.With these emery grits 10 ' among Fig. 2 is example, and they do not contact with fiber, but the granularity of 0.1 to 0.4 μ m is also arranged.For actual conditions, promptly on the one hand for good yarn quality, should there be a coarse fibre deposition groove 6 in following contradiction thereby obtain relaxing, should have a smooth as far as possible fibre deposition groove 6 in order to produce less contamination on the other hand.The thickness of nickel dispersion layer 9 is 20 to 40 μ m preferably.Emery grit 10,10 ' percentage by volume approximately are 20% to 40% of nickel-diamond dust-coatings 8.
Another design according to the fibre guide surface 7 of Fig. 3 and Fig. 4 has disposed another layer nickel-diamond dust-coating 8, and Fig. 3 represents to be in the gas flow spinning cup of new state, and Fig. 4 represents that gas flow spinning cup 1 is through the very large view after certain running time.
According to Fig. 3, nickel-diamond dust-coating 8 is made up of one deck thicker bottom 11 and the thin cover layer 12 of one deck.The thickness d of bottom 11
1Be approximately 20 to 50 μ m.The thickness d of cover layer 12
2Approximately have only 5 μ m.The granularity of the particles of silicon carbide 13 of bottom 11 is 1 to 4 μ m, and the granularity of the particles of silicon carbide of cover layer 12 is 0.1 to 0.4 μ m according to the present invention's order of magnitude of living in.This design only contacts the rotor disk 2 of new state with fiber with the diamond dust 10 of small grain size.Be in relatively thin cover layer 12 in fibre deposition groove experience wear after through shorter running time, because the fibrous ring that this place exists is owing to this place that is formed on of yarn is rotating, and the in fact minimum wearing and tearing in the service life of rotor disk 2 of the surface 7 of fiber sliding surface 5.According to Fig. 4, fibre deposition groove 6 produces following situation after through the short time operation, and promptly the cover layer 12 with short grained diamond dust 10 almost completely weares and teares, and has only the bottom 11 with oarse-grained diamond dust 13 to work.In contrast, fiber sliding surface 5 still keeps it at state shown in Fig. 3.As known by prior art, this obtains a fibre guide surface 7 in principle, and wherein the roughness of fiber sliding surface 5 is less than fibre deposition groove 6.According to the present invention, some difference ground of the nickel-diamond dust of new state-coating 8 and prior art has the emery grit 10 that granularity has only 0.1 to 0.4 μ m from the teeth outwards.
Claims (5)
1. with the gas flow spinning cup of a fiber sliding surface and a fibre deposition groove, its surface that contacts with fiber has one deck nickel-diamond dust-coating, this nickel-diamond dust-coating itself is made up of the nickel dispersion layer of the particles of silicon carbide of the embedding of one deck band designated size, it is characterized in that, at least in the nickel-diamond dust-coating (8) of new state, this granularity from nickel dispersion layer (9) emery grit outstanding and that contact with fiber (10) is 0.1 to 0.4 μ m.
2. gas flow spinning cup according to claim 1 is characterized in that, the thickness (d) of nickel dispersion layer (9) is 20 to 40 μ m, and the granularity that the emery grit (10 ') that does not contact with fiber has is 0.1 to 0.4 μ m.
3. gas flow spinning cup according to claim 1 and 2 is characterized in that, the percentage by volume of diamond dust (10,10 ') accounts for 20% to 40% of nickel-diamond dust-coating (8).
4. gas flow spinning cup according to claim 1, it is characterized in that, nickel dispersion layer (9) is made up of thicker bottom of one deck (11) and the thin cover layer (12) of one deck, the diamond dust (10 of cover layer (12), 10 ') granularity is 0.1 to 0.4 μ m, and the granularity of diamond dust (13) particle of bottom (11) is 1 to 4 μ m.
5. gas flow spinning cup according to claim 4 is characterized in that, the thickness (d of cover layer (12)
2) approximately be 5 μ m.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410031956 DE102004031956A1 (en) | 2004-06-24 | 2004-06-24 | Open-end spinning rotor, having fiber contacting surfaces provided with nickel-diamond coating containing projecting, small diamond particles to optimize roughness |
| DE102004031956.1 | 2004-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712584A CN1712584A (en) | 2005-12-28 |
| CN1712584B true CN1712584B (en) | 2011-04-13 |
Family
ID=35501884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510080917 Expired - Fee Related CN1712584B (en) | 2004-06-24 | 2005-06-24 | Gas flow spinning cup |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1712584B (en) |
| DE (1) | DE102004031956A1 (en) |
| TW (1) | TWI334454B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007036927A1 (en) * | 2007-08-04 | 2009-02-12 | Oerlikon Textile Gmbh & Co. Kg | Spinning agent of a textile machine |
| EP2495081B1 (en) | 2011-03-01 | 2014-05-07 | GFD Gesellschaft für Diamantprodukte mbH | Cutting tool with blade made from fine-crystalline diamond |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6012278A (en) * | 1997-06-13 | 2000-01-11 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Open-end spinning rotor with a coated fiber guiding surface and process for its manufacture |
| WO2000052225A1 (en) * | 1999-03-02 | 2000-09-08 | Kennametal Inc. | A tool having a multilayer coating comprising multiple mtcvd layers |
| CN1290773A (en) * | 1999-10-02 | 2001-04-11 | W·施拉夫霍斯特公司 | Rotor for open-end spinning machine |
| JP3193933B2 (en) * | 1992-10-12 | 2001-07-30 | 株式会社クラレ | Polyester sewing thread |
-
2004
- 2004-06-24 DE DE200410031956 patent/DE102004031956A1/en not_active Withdrawn
-
2005
- 2005-06-06 TW TW94118566A patent/TWI334454B/en not_active IP Right Cessation
- 2005-06-24 CN CN 200510080917 patent/CN1712584B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3193933B2 (en) * | 1992-10-12 | 2001-07-30 | 株式会社クラレ | Polyester sewing thread |
| US6012278A (en) * | 1997-06-13 | 2000-01-11 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Open-end spinning rotor with a coated fiber guiding surface and process for its manufacture |
| WO2000052225A1 (en) * | 1999-03-02 | 2000-09-08 | Kennametal Inc. | A tool having a multilayer coating comprising multiple mtcvd layers |
| CN1290773A (en) * | 1999-10-02 | 2001-04-11 | W·施拉夫霍斯特公司 | Rotor for open-end spinning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200606290A (en) | 2006-02-16 |
| DE102004031956A1 (en) | 2006-01-12 |
| CN1712584A (en) | 2005-12-28 |
| TWI334454B (en) | 2010-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20120624 |