EP1713962A1 - Faserleitkanal für eine offenend-spinnvorrichtung sowie verfahren zum herstellen eines faserleitkanals - Google Patents
Faserleitkanal für eine offenend-spinnvorrichtung sowie verfahren zum herstellen eines faserleitkanalsInfo
- Publication number
- EP1713962A1 EP1713962A1 EP04804372A EP04804372A EP1713962A1 EP 1713962 A1 EP1713962 A1 EP 1713962A1 EP 04804372 A EP04804372 A EP 04804372A EP 04804372 A EP04804372 A EP 04804372A EP 1713962 A1 EP1713962 A1 EP 1713962A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber guide
- guide channel
- fiber
- binder
- rotor
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 109
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000007383 open-end spinning Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- 238000009987 spinning Methods 0.000 claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract 4
- 230000007423 decrease Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011224 oxide ceramic Substances 0.000 claims description 4
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004512 die casting Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- D01H4/38—Channels for feeding fibres to the yarn forming region
Definitions
- the invention relates to a fiber guide channel according to the preamble of claim 1 and a method for producing a fiber guide channel according to the preamble of claim 4.
- Fiber guiding channels have long been known in connection with open-end spinning devices, in particular with open-end rotor spinning devices, and have been described in numerous patent applications.
- the surface of these components must be completely smooth so that no fibers can get stuck during the pneumatic transport of the fibers. In particular, it should be avoided that harmful air vortices can form in the boundary layer area of the fiber guide channel.
- Fiber routing device is manufactured.
- This prefabricated component is then in one
- Die-casting die with, for example, liquid aluminum Die-casting die with, for example, liquid aluminum.
- the fiber guide channel device according to DE 195 11 084 AI is also designed as a cold-formed sheet steel part.
- the sheet steel part can be fixed interchangeably in a corresponding receiving bore of a prefabricated opening roller housing and is sealed off from the opening roller housing by an O-ring seal lying on the outer circumference of the fiber guide channel device.
- This known fiber guide channel device is sealed off from the channel plate by means of a special hose nozzle. In practice, however, it has been found that sealing problems can occur with such steel sheet constructions, which do not allow proper spinning operation.
- Sealing ring on and can be angled precisely and airtight in a corresponding hole of the
- Opening roller housing can be set.
- the fiber guide channel opens in the area of a central one
- Area is also sealed airtight via a corresponding seal.
- the fiber routing channels according to DE 197 12 881 AI are also used for
- the prescribed fiber guide channels have proven themselves in practice in principle and are used in large numbers in open-end rotor spinning devices.
- the invention has for its object to develop a fiber routing channel and a method for producing fiber routing channels, which enables inexpensive, that is, as few rejects as possible manufacture of fiber routing channels, with no too narrow limits with regard to the shape of the fiber routing channels should be set.
- a preferred method for producing such a fiber guide channel is described in claim 4.
- the fiber guide channels according to the invention have the particular advantage that they are largely free of procedural restrictions with regard to their outer and inner shape. This means that the shape of the fiber guiding channels is hardly subject to any restrictions, even in the area of their clear cross section, and they can be easily provided with a flow-optimized channel profile. Since the reject rate is also extremely low in the intended manufacturing process, it is also possible to manufacture such fiber guiding channels at low cost.
- the end bodies created after sintering can be subjected to almost all conceivable heat treatment and surface treatment processes in subsequent finishing processes with almost no further treatment. This means that the fact that with fiber guide channels that are manufactured according to the above-described manufacturing process, a large part of the otherwise usual, relatively complex reworking is omitted and the reject rate is very low, the fiber guide channels according to the invention can be manufactured with little process steps and thus inexpensively and with high quality.
- a corresponding procedure is also called MIM or PIM
- an organic binder is first mixed with a sinterable substance, for example a very fine ( ⁇ 20 ⁇ m), usually spherical metal powder or an oxide ceramic powder to form a homogeneous mass or processed into so-called pellets.
- a sinterable substance for example a very fine ( ⁇ 20 ⁇ m)
- spherical metal powder or an oxide ceramic powder usually spherical metal powder or an oxide ceramic powder to form a homogeneous mass or processed into so-called pellets.
- the volume fraction of the metal powder or the oxide ceramic is the volume fraction of the metal powder or the oxide ceramic
- Powder in this homogeneous mass is usually over 50%.
- the organic binders are then removed from the raw bodies in a so-called debinding process.
- the grain size of the sinterable material and the selection of the debinding and / or sintering parameters can be influenced in a targeted manner on the surface structure of the fiber guide channel. This means that the most favorable surface structure for further processing or heat treatment can be determined in advance.
- the surfaces that come into contact with the fibers can additionally be improved in a relatively simple manner, for example by chrome plating.
- the surface quality of the fiber guide channel can be optimized in a relatively simple manner by chrome plating or the like. This means that a correspondingly smooth coating of the fiber guide channel can be created, which has a very positive effect on the flow conditions within the fiber guide channel and thus overall on the spinning result of the entire device.
- the fiber guiding channels or the inserts manufactured according to the invention can advantageously also be subjected to another heat treatment known per se, for example nitriding, boriding, etc.
- Such heat-treated components are also characterized by a long service life.
- FIG. 1 schematically shows a side view of an open-end rotor spinning device with a fiber guide channel according to the invention connected between the opening roller housing and the spinning rotor,
- FIG. 2 shows a front view of an opening roller housing with a first embodiment of a one-piece fiber guide channel manufactured according to MIM or PIM technology
- FIG. 3 shows the fiber guide channel shown in FIG. 2 in a side view
- FIG. 4 shows a second embodiment of a one-part fiber guide channel manufactured according to MIM or PIM technology
- FIG. 5 shows a multi-part fiber guide channel with an insert manufactured according to MIM or PIM technology.
- the open-end rotor spinning device 1 shown in FIG. 1 has a rotor housing 2 in which a spinning rotor 3 rotates at high speed.
- the spinning rotor 3 is supported with its rotor shaft 4 in the gusset of a support disk bearing 5 and is acted upon by a machine-long tangential belt 6, which is started by a pressure roller 7.
- the rotor housing 2, which is open towards the front, is closed during operation by a pivotably mounted cover element 8, which has a channel plate 37 with a seal 9, and is connected via a corresponding pneumatic line 10 to a vacuum source 11, which supplies the spinning vacuum required in the rotor housing 2 generated.
- a preferably exchangeable channel plate extension, a so-called channel plate adapter 12 is arranged in a receiving opening of the channel plate 37 (not shown in any more detail), which has a thread take-off nozzle and the opening area of a fiber guide channel 13.
- an opening roller housing 17 On the cover element 8, which is rotatably supported to a limited extent about a pivot axis 16, an opening roller housing 17 is fixed.
- the cover element 8 also has rear bearing brackets 19, 20 for mounting an opening roller 21 or a sliver feed cylinder 22.
- the opening roller 21 is driven in the area of its host ice 23 by a circumferential, machine-long tangential belt 24, while the drive of the
- Sliver feed cylinder 22 is preferably carried out via a worm gear arrangement (not shown) which is connected to a machine-long drive shaft 25.
- FIG. 2 shows the opening roller housing 17 in a front view, partly in section.
- the connection bore 31 has a stop step 32 on which the fiber guide channel 13 is supported in the installed state.
- the connection bore 31 also has a lateral recess 33 into which a position-fixing device 34 arranged on the fiber guide channel 13 engages.
- the fiber guide channel 13 is sealed off from the connection bore 31 of the opening roller housing 17 by an O-ring seal 35 which is positioned in a corresponding groove 36 which is arranged in the fiber guide channel base 44.
- the fiber guide channel 13 is sealed off from the channel plate 37, for example, by means of a hose nozzle 38, which is supported on a contact shoulder 41 on the fiber guide channel 13.
- FIG. 3 shows a side view of the fiber guide channel 13 shown in FIG. 2 and manufactured according to MIM or PIM technology.
- the fiber guide channel 13 preferably has a foot part 4.4 which is circular in cross section when viewed in plan view, a partially conical central section 45 and a cylindrical mouth region 46.
- a groove 36 for receiving a 0-ring seal 35 is arranged in the base part 44.
- the foot part 44 has a concave curve 47 adapted to the opening roller 21.
- the curve 47 extends from a fiber tear-off edge 50 in the direction of rotation of the opening roller 21.
- the fiber guide channel 13 has in the region of the
- Fibrous tear-off edge 50 that is, in its entry region 18 a clear channel cross-section with a width / height ratio of about 3: 1 and, based on its width B, tapers towards its mouth 26, preferably at an angle ⁇ , As can be seen from FIG. 2, on the other hand, the height H of the fiber guide channel 13 remains essentially constant from its entry region 18 to its mouth 26.
- FIG. 4 shows a further embodiment of a one-part fiber guide channel 13.
- the fiber guide channel 13 has in the area of it
- Transport air flow in the area of the inlet opening can also be achieved by using a multi-part fiber guide channel 13 shown in FIG.
- Input opening 18 of the fiber guide channel 13 is exchangeable
- At least the insert 27 is according to the MIM or
- the insert 27 reduces the inlet opening 18 of the
- Fiber guide channel 13 and thus to accelerate the in the transport air flow entering the fiber guide channel 13 and acting due to the negative pressure in the rotor housing.
- the insert 27 can of course also be designed such that the clear cross section of the fiber guide channel 13 is not narrowed.
- At least the insert 27 is manufactured according to the MIM or PIM technology.
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)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004005429A DE102004005429A1 (de) | 2004-02-04 | 2004-02-04 | Faserleitkanal für eine Offenend-Spinnvorrichtung sowie Verfahren zum Herstellen eines Faserleitkanals |
| PCT/EP2004/014786 WO2005075720A1 (de) | 2004-02-04 | 2004-12-29 | Faserleitkanal für eine offenend-spinnvorrichtung sowie verfahren zum herstellen eines faserleitkanals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1713962A1 true EP1713962A1 (de) | 2006-10-25 |
| EP1713962B1 EP1713962B1 (de) | 2010-07-21 |
Family
ID=34801541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04804372A Revoked EP1713962B1 (de) | 2004-02-04 | 2004-12-29 | Faserleitkanal für eine offenend-spinnvorrichtung sowie verfahren zum herstellen eines faserleitkanals |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070277497A1 (de) |
| EP (1) | EP1713962B1 (de) |
| CN (1) | CN1914362A (de) |
| BR (1) | BRPI0418504A (de) |
| DE (2) | DE102004005429A1 (de) |
| WO (1) | WO2005075720A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005050102B4 (de) * | 2005-10-18 | 2018-04-05 | Rieter Ingolstadt Gmbh | Offenend-Spinnvorrichtung mit einem Faserkanal aus mehreren Kanalbauteilen |
| US8431328B2 (en) | 2007-02-22 | 2013-04-30 | Nikon Corporation | Exposure method, method for manufacturing flat panel display substrate, and exposure apparatus |
| DE102010044181A1 (de) * | 2010-11-19 | 2012-05-24 | Maschinenfabrik Rieter Ag | Faserkanaleinsatz |
| DE102011010925A1 (de) | 2011-02-11 | 2012-08-16 | Oerlikon Textile Gmbh & Co. Kg | Faserleitkanaleinrichtung für eine Offenend-Spinnvorrichtung |
| DE102011116786A1 (de) * | 2011-10-22 | 2013-04-25 | Oerlikon Textile Gmbh & Co. Kg | Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung |
| CN102847944A (zh) * | 2012-04-27 | 2013-01-02 | 宝得粉末注射成形(常熟)有限公司 | 电脑针织横编机用的纱嘴的加工方法 |
| CN102847945A (zh) * | 2012-04-27 | 2013-01-02 | 宝得粉末注射成形(常熟)有限公司 | 异形微型送纱管的加工方法 |
| DE102018105075A1 (de) * | 2018-03-06 | 2019-09-12 | Saurer Spinning Solutions Gmbh & Co. Kg | Faserleitkanaleinrichtung für eine Offenend-Spinnvorrichtung mit einer Rastverbindung |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS163843B1 (de) * | 1971-03-26 | 1975-11-07 | Elitex Zavody Textilniho | |
| DE2364261C3 (de) * | 1973-12-22 | 1982-12-23 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt | Faserzuführvorrichtung für eine mit Unterdruck arbeitende Offen-End-Spinnvorrichtung |
| DE2544721A1 (de) * | 1975-10-07 | 1977-04-14 | Feldmuehle Anlagen Prod | Vorrichtung zum verspinnen |
| DE3644871A1 (de) * | 1986-04-04 | 1987-10-15 | Licentia Gmbh | Verfahren zur steuerung der sinterung von durch pulvermetallspritzguss hergestellten metallformteilen |
| DE19511084A1 (de) * | 1995-03-25 | 1996-09-26 | Schlafhorst & Co W | Offenend-Spinnvorrichtung |
| DE19712881B4 (de) * | 1997-03-27 | 2005-12-22 | Saurer Gmbh & Co. Kg | Offenend-Spinnvorrichtung |
| DE29717211U1 (de) * | 1997-09-26 | 1997-11-13 | Legrom, Friedrich, 71540 Murrhardt | Faserzuführelement einer Rotorspinnmaschine |
| DE19742498A1 (de) * | 1997-09-26 | 1999-04-01 | Friedrich Legrom | Faserzuführelement einer Rotorspinnmaschine |
| DE19805598A1 (de) | 1998-02-12 | 1999-08-19 | Goerlich | Verfahren zur Herstellung von beliebig formbaren Hinterschnitten und/oder Hohlräumen in PIM-Teilen |
| DE19831315A1 (de) * | 1998-07-13 | 2000-01-20 | Ver Foerderung Inst Kunststoff | Verfahren zur Herstellung von Prototypwerkzeugen mit dem Powder Injection Moulding Prozeß über ein Prototypwerkzeug aus Kunststoff |
| US6733703B2 (en) * | 2000-09-26 | 2004-05-11 | Romain L. Billiet | Method for controlling the dimensions of bodies made from sinterable materials |
| DE10120172C1 (de) * | 2001-04-24 | 2002-11-14 | Forschungszentrum Juelich Gmbh | Herstellung von Bauteilen durch Metallformspritzen (MIM) |
| US7198201B2 (en) * | 2002-09-09 | 2007-04-03 | Bete Fog Nozzle, Inc. | Swirl nozzle and method of making same |
| JP3952006B2 (ja) * | 2003-11-26 | 2007-08-01 | セイコーエプソン株式会社 | 焼結用原料粉末又は焼結用造粒粉末およびそれらの焼結体 |
| TWI246947B (en) * | 2004-06-10 | 2006-01-11 | Taiwan Powder Technologies Co | Method for making sintered body of metal powder and sintered body prepared therefrom |
-
2004
- 2004-02-04 DE DE102004005429A patent/DE102004005429A1/de not_active Withdrawn
- 2004-12-29 CN CNA2004800413634A patent/CN1914362A/zh active Pending
- 2004-12-29 BR BRPI0418504-8A patent/BRPI0418504A/pt not_active IP Right Cessation
- 2004-12-29 EP EP04804372A patent/EP1713962B1/de not_active Revoked
- 2004-12-29 DE DE502004011433T patent/DE502004011433D1/de not_active Expired - Lifetime
- 2004-12-29 US US10/588,389 patent/US20070277497A1/en not_active Abandoned
- 2004-12-29 WO PCT/EP2004/014786 patent/WO2005075720A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005075720A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1914362A (zh) | 2007-02-14 |
| DE502004011433D1 (de) | 2010-09-02 |
| EP1713962B1 (de) | 2010-07-21 |
| DE102004005429A1 (de) | 2005-08-25 |
| US20070277497A1 (en) | 2007-12-06 |
| BRPI0418504A (pt) | 2007-05-15 |
| WO2005075720A1 (de) | 2005-08-18 |
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