EP1068382A1 - Ring für ringspinn- und ringzwirnmaschinen - Google Patents
Ring für ringspinn- und ringzwirnmaschinenInfo
- Publication number
- EP1068382A1 EP1068382A1 EP98909264A EP98909264A EP1068382A1 EP 1068382 A1 EP1068382 A1 EP 1068382A1 EP 98909264 A EP98909264 A EP 98909264A EP 98909264 A EP98909264 A EP 98909264A EP 1068382 A1 EP1068382 A1 EP 1068382A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- hard chrome
- core
- chrome layer
- layer
- 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
- 241001589086 Bellapiscis medius Species 0.000 title 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 68
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 238000007378 ring spinning Methods 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 150000001879 copper Chemical class 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 10
- 230000007704 transition Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- 235000019737 Animal fat Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/52—Ring-and-traveller arrangements
- D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
- D01H7/602—Rings
Definitions
- the invention relates to a ring for ring spinning and ring twisting machines.
- a ring for a ring spinning or ring twisting machine must have an optimized surface that is adapted to the requirements in order to enable a ring traveler that rotates on the ring at speeds of up to 55 m / s to run smoothly and with as little wear as possible .
- the surface of the ring must be as smooth and hard as possible and may only oppose the ring traveler with a low running resistance.
- the ring should be low-wear, since with increasing wear of the ring, the smooth running of the ring traveler on the ring is impaired, which can lead to increased thread breaks.
- the wear of the ring traveler also increases, which leads to shorter service lives of the ring traveler and ring, which in turn, like the increased thread breaks, increases the production costs.
- the object of the present invention is therefore to create a ring for ring spinning and ring twisting machines, which enables rings and ring travelers to be used more economically.
- a hard chrome layer which is preferably applied directly to a core of the ring, gives the ring a very hard, wear-resistant surface that adheres firmly to the core of the ring.
- the hard chrome layer can be problem-free be used as a coating for the ring, although very high temperatures (up to approx. 1000 ° C) can occur on the rings during the rapid rotation of the ring travelers.
- very high temperatures up to approx. 1000 ° C
- a person skilled in the art knows (cf. Schatt: "Materials of machine, plant and apparatus construction", VEB German Publishing House for Basic Industry, Leipzig 1982, p. 144) that hard chrome layers soften at temperatures above 400 ° C, which is why the use of hard chrome - coatings for rings have never been considered.
- the core of the ring advantageously has a core surface which has been polished before the hard chrome layer is applied.
- the core can also be coated with a copper or nickel layer, which in turn is then polished and on which the hard chrome layer is arranged.
- Such nickel or copper layers on the core and under the hard chrome layer are particularly advantageous under corrosive operating conditions of the ring.
- a hard chrome layer applied to a polished core surface has a very smooth surface, which causes a ring rotor to run very smoothly on the hard chrome-plated ring. Commissioning without ring run-in is therefore possible without any problems, which greatly reduces the loss of production due to run-in times.
- a ring whose hard chrome layer applied to the core of the ring also has a polished surface offers particular advantages, since the polishing of the surface of the hard chrome layer rounds off sharp-edged tips of chrome crystals that can protrude from the surface of the hard chrome layer. These pointed, sharp-edged crystals of the hard chrome layer have a file-like effect and cause excessive wear on objects sliding or sliding over the hard chrome layer. These file-like properties of the previously known hard chrome layers are another reason why Hard chrome layers have never been considered for rings for ring spinning or ring twisting machines. However, if the hard crystal tips of the hard chrome layer are rounded off by polishing, this problem is eliminated.
- the ring only has a low running resistance against the ring traveler rotating on it and there is no increased wear on the ring traveler.
- the roughness of the core surface before the hard chrome layer is applied is, for example, Ra 0-0.3 ⁇ m, preferably less than 0.2 ⁇ m.
- the surface of the hard chrome layer applied thereon also shows a roughness of approximately 0.15 ⁇ m.
- the core of the ring is made of tempered steel. Large centrifugal forces can arise from the high speeds at which the ring rotors rotate on the rings, so that the ring rotors
- Thread breaks at these rotational speeds can lead to a sudden impact load on the ring
- the base material of the ring is a tempered steel, so the material underneath the hard chrome layer does not yield, even under high pressure and sudden impact loads, and the ring can withstand these loads without it Survive damage to the hard chrome layer and the underlying core.
- the lifespan of the ring is increased, and even after an event, such as a thread break, the ring traveler can continue to run smoothly on the ring with little wear.
- Tempered roller bearing steel has proven to be particularly suitable for use as the core of a ring.
- Corrosion resistance making them suitable for use in extreme conditions such as wet spinning are particularly suitable.
- the hard chrome layer advantageously has a thickness between 1 .mu.m and 60 .mu.m, the layer thickness in a preferred embodiment being the thickest in the area of the highest stress, that is to say in those areas of the ring which come into contact with the ring traveler during its movement on the ring is.
- a ring that has the hard chrome layer only in the areas that form contact surfaces between the ring and ring traveler when the ring traveler runs on the ring, as well as a ring completely coated with a hard chrome layer leads to better running properties of the ring traveler on the ring and thus to a longer service life , fewer thread breaks and less wear on the ring itself, which means that even with such a ring, the ring and ring traveler can be used more economically.
- the ring has at least one electrical contact point, via which the ring is supplied with current during the application of the hard chrome layer. This electrical contact point is advantageously located in the area of a seat, which lies opposite the area having the contact surfaces, for example a flange.
- This arrangement ensures that there are no undesirable unevenness, roughness or other disturbances in the area of the contact surfaces due to the electrical contact points in the hard chrome layer or on the surface of the ring. Even if the location of the electrical contact points can no longer be located by the eye after the hard chrome layer has been polished, the hard chrome layer can nevertheless have micro-faults at these locations, which have a negative influence on the wear resistance or running of the ring traveler or the wear resistance of the ring.
- a hard chromium-plated ring according to the invention can advantageously be used in all spinning and twisting mills that work with ring spinning or ring twisting machines, since the production costs can be reduced by using such a ring.
- the ring offers special advantages wherever materials are processed that release lubricating substances, such as animal fat or fibers with lubricating properties, in the area of the ring and the ring traveler.
- the ring is particularly suitable for processing cotton with its short, lubricating fibers.
- the surface of the ring has a very high wear resistance and only offers a low running resistance to the ring traveler, so that it runs on such a ring with very little wear, no additional lubrication, such as with molybdenum disulfide lubricant, is required to ensure long service life and continuous work to ensure with few thread breaks. Even for conditions as extreme as they are occur when wet spinning, the ring is very suitable. Good corrosion resistance, as is particularly important under these conditions, is achieved with a ring rotor, the hard chrome layer of which is pre-nickel-plated or copper-coated, for example.
- Fig. 2a to 2c rings with different flange profiles in cross section with matching ring travelers
- FIG. 3b shows the ring from FIG. 2a with the core surface only partially coated
- FIG. 3b shows the ring from FIG. 2a with a completely coated core and indicated layer thickness distribution of the hard chrome layer on this core.
- FIG. 1 shows, in perspective, part of a ring 10 coated with a hard chrome layer 26 (not explicitly shown) with a core 11 made, for example, from tempered roller bearing steel, one side of which is designed as a T-flange 12.
- the side opposite the flange 12 is designed as a seat 18, wherein the seat 18 can be designed in a wide variety of ways, for example also as shown in FIG. 2c.
- the annular core 11 of the ring 10 has a polished core surface 28.
- an electrical contact point 19 indicated by dashed lines in FIG. 1), via which the ring is supplied with current during the electrochemical application of the hard chrome layer.
- the core 11 of the ring 10, which has a core surface 28, can either be coated with another layer, for example a nickel or copper layer, or it can, as in this example, be anodically etched so that all oxides, impurities or, for example, also intermediate preservatives or the like are removed from the core surface 28 and the hard chrome layer 26 can be deposited directly on the core surface 28.
- a suitable C-shaped ring traveler 14 runs in the direction of arrow I. Due to the centrifugal force acting on the ring traveler 14 during the rotation (arrow F), the ring traveler becomes 14 on the ring 10 in the radial direction with respect to the ring 10 pressed outwards. An invisible flank of the C-shaped ring traveler 14 hangs on the radially inner side 16 of the flange 12 of the ring 10 and thus holds the ring traveler 14 on the ring 10.
- 2a and 2b each show a sectional view of two embodiment forms of hard chrome-plated rings 10 with T flanges 12 and with matching C-shaped ring travelers 14 which are also designed somewhat differently.
- 2c shows the section of a hard chrome-plated ring 10, the core 11 of which is designed in the form of an oblique flange 17. Also formed from the core 11, a seat 18, which in this example has a square cross section, is arranged opposite the inclined flange 17. A matching hook-shaped ring traveler 19 is shown on the inclined flange 1 ′′ . All ring travelers 14, 19 are shown in a position with respect to the respective flange 12, 17 that they are during of the company in relation to the ring 10.
- this contact surface 24 the stress on the ring 10 with regard to wear, temperature, pressure, etc. is greatest.
- a hard chrome layer 26 is thickest in this area of the ring 10.
- the ring from FIG. 2a is shown again in section.
- the hard chrome layer 26 only covers part of the core surface 28 in FIG. 3a, while the core 11 of the ring 10 shown in FIG. 3b is completely covered with the hard chrome layer 26.
- the hard chrome layer 26 is applied directly to the polished core surface 28 of the core 11 of the respective ring 10. Because a fader. 30, which is guided through the ring traveler 14, 19 during operation (indicated by dashed lines in FIG. 1) and is under different tension depending on the speed, type of thread and machine settings, the area of the ring 10 or its flange 12, 17 which forms the contact surface 24 with the ring traveler 14, 19 vary locally. A region A on the radially inner side 16 of the flange 12 of the ring 10, on which the contact surface 24 can form during operation, is therefore chosen to be somewhat larger than the contact surface 24 actually formed at this point.
- FIG. 3a shows an embodiment in which the hard chrome layer 26 is applied primarily in area A and a little in a transition area B, which can also be loaded (see below).
- the remaining area C of the ring 10 is not coated with the hard chrome layer 26.
- Such a ring 10 has the same advantages, less wear of ring 10 and ring traveler 14, 19, high running smoothness, few thread breaks, etc., as a completely chrome-plated ring 10.
- the thickness of the hard chrome layer 26 in area A is e.g. 20-40 ⁇ m.
- the hard chrome layer 26 has an average thickness of 10 to 25 ⁇ m.
- the layer thickness in the remaining area C, which makes up the remaining part of the ring 10, is at least 4 ⁇ m.
- the reason for the average layer thickness of the hard chrome layer 26 in the transition area B of the ring 10 is that during operation with an unfavorable parameter setting (thread type, thread thickness, ring traveler shape, ring traveler weight etc.) there is also a contact surface 24 between ring traveler 14 in this transition area B. 19 and ring 10 can form.
- the ring 10 does not immediately show damage after a single operation with such an unsuitable parameter setting and can continue to be used without any problems, it is useful for the ring 10 to have a somewhat thicker hard chrome layer 26 in this area B than in the remaining area C.
- the surface 32 of the hard chrome layer 26 is polished in both examples, at least in area A, for example to Ra 0.2 ⁇ m. So that the core 11 of the ring 10 is just as resistant as the hard chrome layer 26 applied to it, the core 11 is, for example, a roller bearing steel with a tempered surface. Impact or pressure loads can thus be absorbed by the ring 10 without the hard chrome layer 26 being damaged due to the yielding of an underlying core 11 made of relatively "soft" material.
- the base material for core 11 such as tempered roller bearing steel.
- the core can be coated with a nickel or copper layer for better corrosion resistance.
- the hard chrome layer itself can also be an ECD or a topocrom layer.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Adornments (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH1998/000124 WO1999051802A1 (de) | 1998-04-02 | 1998-04-02 | Ring für ringspinn- und ringzwirnmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1068382A1 true EP1068382A1 (de) | 2001-01-17 |
EP1068382B1 EP1068382B1 (de) | 2002-06-26 |
Family
ID=4551316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98909264A Expired - Lifetime EP1068382B1 (de) | 1998-04-02 | 1998-04-02 | Ring für ringspinn- und ringzwirnmaschinen |
Country Status (10)
Country | Link |
---|---|
US (1) | US6360521B1 (de) |
EP (1) | EP1068382B1 (de) |
JP (1) | JP2002510755A (de) |
CN (1) | CN1190536C (de) |
AT (1) | ATE219795T1 (de) |
DE (1) | DE59804610D1 (de) |
ES (1) | ES2175684T3 (de) |
PT (1) | PT1068382E (de) |
TR (1) | TR200002870T2 (de) |
WO (1) | WO1999051802A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012070063A2 (en) * | 2010-11-24 | 2012-05-31 | Lakshmi Machine Works Ltd. | Improved textile spinning and twisting ring |
CN102443893A (zh) * | 2011-09-22 | 2012-05-09 | 吴江秦邦纺织有限公司 | 一种具有自润性能钢丝圈的制备工艺 |
CH706605A1 (de) * | 2012-06-08 | 2013-12-13 | Braecker Ag | Spinn- oder Zwirnring. |
JP5910569B2 (ja) | 2012-07-04 | 2016-04-27 | 株式会社豊田自動織機 | リング式紡機のリング/トラベラ系 |
CN102758280A (zh) * | 2012-07-06 | 2012-10-31 | 常熟市天豪机械有限公司 | 纺织钢领圈 |
CH708659A2 (de) | 2013-10-03 | 2015-04-15 | Bräcker Ag | Spinn- oder Zwirnring. |
WO2017153969A2 (en) * | 2016-03-10 | 2017-09-14 | Ab Carter, Inc. | Metallic sulfide coated travelers, methods of coating travelers, and systems for use of metallic sulfide coated travelers |
CH712733A1 (de) | 2016-07-22 | 2018-01-31 | Bräcker Ag | Ringläufer. |
JP7390969B2 (ja) | 2020-05-12 | 2023-12-04 | 株式会社豊田中央研究所 | 精紡機用リングおよびその製造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE843490C (de) * | 1949-08-24 | 1952-07-10 | Rieter Joh Jacob & Cie Ag | Verfahren zur Herstellung von Laeuferringen fuer Spinn- und Zwirnmaschinen |
US2970425A (en) * | 1956-05-21 | 1961-02-07 | Walter A Kluttz | Plated spinning ring and method of making same |
US4246746A (en) * | 1979-01-31 | 1981-01-27 | Standard Oil Company (Indiana) | Method and apparatus for winding and twisting yarn |
US4354342A (en) * | 1979-01-31 | 1982-10-19 | Standard Oil Company (Indiana) | Twister ring and traveler |
FR2463829A1 (fr) * | 1979-08-24 | 1981-02-27 | Alsacienne Constr Meca | Perfectionnement aux dispositifs antiballon des continus a filer |
JPH0723566B2 (ja) * | 1985-04-18 | 1995-03-15 | 金井 宏之 | 紡機用リング |
US4677817A (en) * | 1985-12-19 | 1987-07-07 | Kanai Juyo Kogyo Kabushiki Kaisha | Travellers for spinning machinery |
JPH0811848B2 (ja) * | 1987-12-28 | 1996-02-07 | 金井 宏之 | 紡機用リング |
DE4300491A1 (de) * | 1993-01-13 | 1994-07-14 | Carl Hofmann Ringlaeufer Und R | Ring für Spinnmaschinen und Verfahren zur Herstel- lung einer Oberflächenschicht |
DE4342148A1 (de) * | 1993-12-10 | 1995-06-14 | Cerasiv Gmbh | Ring-/Läufersystem für Spinn- und Zwirnmaschinen |
US5721055A (en) * | 1995-01-03 | 1998-02-24 | Surface Technology, Inc. | Lubricated textile spinning machinery parts |
US5829240A (en) | 1997-03-17 | 1998-11-03 | A. B. Carter, Inc. | Spinning ring having improved traveler bearing surface |
-
1998
- 1998-04-02 DE DE59804610T patent/DE59804610D1/de not_active Expired - Fee Related
- 1998-04-02 TR TR2000/02870T patent/TR200002870T2/xx unknown
- 1998-04-02 CN CNB988140837A patent/CN1190536C/zh not_active Expired - Fee Related
- 1998-04-02 ES ES98909264T patent/ES2175684T3/es not_active Expired - Lifetime
- 1998-04-02 PT PT98909264T patent/PT1068382E/pt unknown
- 1998-04-02 US US09/647,333 patent/US6360521B1/en not_active Expired - Fee Related
- 1998-04-02 WO PCT/CH1998/000124 patent/WO1999051802A1/de active IP Right Grant
- 1998-04-02 JP JP2000542511A patent/JP2002510755A/ja active Pending
- 1998-04-02 EP EP98909264A patent/EP1068382B1/de not_active Expired - Lifetime
- 1998-04-02 AT AT98909264T patent/ATE219795T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9951802A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE219795T1 (de) | 2002-07-15 |
JP2002510755A (ja) | 2002-04-09 |
CN1295634A (zh) | 2001-05-16 |
CN1190536C (zh) | 2005-02-23 |
DE59804610D1 (de) | 2002-08-01 |
PT1068382E (pt) | 2002-11-29 |
WO1999051802A1 (de) | 1999-10-14 |
ES2175684T3 (es) | 2002-11-16 |
EP1068382B1 (de) | 2002-06-26 |
US6360521B1 (en) | 2002-03-26 |
TR200002870T2 (tr) | 2000-12-21 |
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