CN1473131A - Endless yarn tensioning strip and method for producing the same - Google Patents
Endless yarn tensioning strip and method for producing the same Download PDFInfo
- Publication number
- CN1473131A CN1473131A CNA018185231A CN01818523A CN1473131A CN 1473131 A CN1473131 A CN 1473131A CN A018185231 A CNA018185231 A CN A018185231A CN 01818523 A CN01818523 A CN 01818523A CN 1473131 A CN1473131 A CN 1473131A
- Authority
- CN
- China
- Prior art keywords
- blank
- brake
- brake collar
- stamped
- deformability
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/364—Yarn braking means acting on the drum
- D03D47/366—Conical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/50—Surface of the elements in contact with the forwarded or guided material
- B65H2404/52—Surface of the elements in contact with the forwarded or guided material other geometrical properties
- B65H2404/522—Surface of the elements in contact with the forwarded or guided material other geometrical properties details of surface roughness and/or surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/10—Ensuring correct operation
- B65H2601/12—Compensating; Taking-up
- B65H2601/121—Wear
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49995—Shaping one-piece blank by removing material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12361—All metal or with adjacent metals having aperture or cut
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Braking Arrangements (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
An endless yarn braking strip for a yarn tensioning device consists of precipitation hardened stainless steel (S). The endless yarn braking strip is produced by first manufacturing an endless blank from a sheet of precipitation hardening steel, shaping the blank into a truncated cone in its endless form, and then hardening the strip by precipitation hardening.
Description
The present invention relates to according to the endless yarn tensioning strip as described in the preamble of claim 1 and according to the method for the described manufacturing endless yarn tensioning strip of the preamble of claim 2.
In a Yarn Brake that comprises conical butt annular stop band, the inside face of brake collar is pressed in for example drawn work surface of a storage member coaxially, and described drawn work surface in most of the cases is circular.By this way, produced an area of contact between the inside face of brake collar and drawn work surface, this area of contact is used as brake area.Yarn is stored on the storage member with the form of coil, from coil extraction below the top of storage member and brake collar.Yarn is through the contact area between brake collar and the extraction limit, so that braked or produce basic yarn tension uniformly respectively.By the pull coil, the rotation that produces the yarn of being extracted out is rotated, and is similar to the motion of hand of a clock.After rotatablely moving, a distortion takes place in brake collar.The thread friction brake collar.Storage member and brake collar are being kept substantially fixedly.Therefore, that brake collar need have is flexible, better elastic and limit the high-wearing feature of friction load on the extraction surface of brake area for the friction load of various thread material with brake collar, and described extraction surface in most of the cases is a metal.
WO 98/23520 discloses a kind of annular stop band of frusto-conical.This brake collar is made up of a kind of metal or metal alloy.In this patent, beryllium-copper is taken as embodiment.Beryllium-copper is a kind ofly to add the material that needs SC man-hour.But under some operating conditions or for some yarn grade, brake collar may be ground away relatively rapidly and significantly.
US 5,546, and 994 disclose a kind of brake collar that is made of metal sheet, and its thickness is 0.1mm, makes by punching press and deep-draw.This brake collar is flexible according to stating to having.
US 5,678, and 779 disclose a kind of annular stop band that is made of metal alloy.
At last, US 5,409, and 043 discloses a kind of like this brake collar, and it is arranged on the inboard of Kevlar (Kevlar) the chuck circular cone of outside with extremely thin metal level form.Perhaps, brake collar can be that the steel plate of 0.05-0.1mm constitutes by thickness.The significant surface of brake collar can be distinguished chromium plating or nickel plating.
Brake collar is necessary for the elastomeric smooth of annular, although for suitable performance, its significant surface thickness is little and have an abrasion test.Elasticity and abrasion test can reach by the conventional steel of sclerosis.But the conventional steel of sclerosis can not reshape processing usually.On the other hand, traditional hardening of steel of distortion almost can not be implemented up to now in advance.Under the situation of these walled thickness (maxim is a few tenths of millimeter), traditional hardening of steel can cause the forming defects of truncated cone behind forming technology, these forming defectses have destroyed the necessary flatness at the brake collar of significant surface, and can not make the brake collar affine deformation when operation.Thus, these yarn tensioning strips are made by other metallic material up to now always.
An object of the present invention is to provide a kind of above-mentioned yarn tensioning strip and manufacturing and satisfy such method with brake collar of abrasion test, uniform surface smoothness, uniform elasticity and energy large-scale industrialization production and cost savings.
This purpose can reach by the feature of claim 1 and the method for claim 2.
The corrosion-resistant steel of PH has unexpectedly just in time satisfied the requirement of the brake collar that is suitable for making Yarn Brake.Just, such steel can be shaped before hardening process easily, so that zero defect ground is configured as frusto-conical with brake collar from a slab.Steel can be hardened then, makes it have required elasticity, smooth surface and abrasion test at significant surface.The corrosion-resistant steel of the PH in the desired thickness is commercially available, can be carried out machine up simply and hardens easily.
According to described manufacture method, but utilized the stainless deformability of PH, so that at first form Frusto-conical brake collar from slab.Then, utilize its good sclerosis character to obtain high resiliency and the advantages of good abrasion on significant surface.In this case, find surprisingly that although under the situation of thin wall thickness, hardening process still can be carried out, and has obtained a smooth surface like this, and any forming defects of the truncated cone of yarn tensioning strip does not take place.
Slab advantageously forms by punching press.This can reach a high throughput rate with enough accuracy.This deformability cold is that the process of truncated cone sleeve pipe can advantageously be carried out by deep-draw in an instrument.The enforcement of hardening process comprises three steps, i.e. austenite conditioning step, austeno-martensite-step of converting subsequently and a last PH step.
In austenite conditioning step, the blank of deformability cold is heated to about 955 ℃, keeps under this temperature then about 10 minutes.Then, blank is cooled to room temperature in atmosphere.In one hour, the blank behind the deformability cold that cools down is cooled to-73 ℃ approximately, and keeps under this temperature 8 hours.Then, blank is warmed up to room temperature (step of converting) once more in atmosphere.At last, blank is heated to about 510 ℃, keeps under this temperature about 90 minutes, at last cool to room temperature in atmosphere.Like this, the PH that is through with.Then, brake collar can carry out other traditional procedure of processing respectively, or can directly be attached in the Yarn Brake.
In order to obtain having the accurate dimension and the even brake collar of character, blank is stamped into flat annular solid that surplus size is arranged diametrically and is favourable only in cutting blank to target size behind the deformability cold and before the sclerosis.
Help compensating the material displacement that takes place in the elongation process of following the deformability cold process at the material that radially provides that surplus size is arranged.After cutting subsequently, can obtain uniform nature until last cut edge at yarn tensioning strip.
Perhaps, last cutting even can after hardening process, carry out.
In the deformability cold process, advantageously, uniform wall thickness is made as 0.01mm-0.5mm.The thickness range of the about 0.3mm of about 0.05-is particularly advantageous for these yarn tensioning strips of being made by the steel of these PHs.
For store and transportation or similarly avoid corroding in the process-these corrosion harmful in may the course of processing at steel, and in order to obtain good processability, blank is preferably obtained by the metal sheet punching press of annealing.Term " annealing " is interpreted as a kind of already by the applied anticorrosive measure of metal sheet builder.Here can for example comprise state (MillAnnealed) of a kind of being called " grind annealing ", promptly by the state that processing method reached of a kind of being called " solution furnace run and quick cooling ".
The present invention describes with reference to the accompanying drawings, wherein:
Fig. 1 shows a kind of transparent view of annular stop band of Yarn Brake;
Fig. 2 shows a step making slab, a vertical cross-section of expression slab;
The slab deformability cold that Fig. 3 schematically shows Fig. 2 is a frusto-conical, comprises subsequently blank being cut into last size; With
Fig. 4 shows a vertical cross-section of brake collar, comprises the annealing carried out or the explanation of cure step.
Among Fig. 1, annular stop band B has the shape of frustum of a cone sleeve pipe, and it has less diameter d i and bigger diameter d a, the height h of cone axis directions X, the bandwidth b of generatrix direction and wall thickness y.Wall thickness y is identical in whole brake collar B between about 0.01mm-0.5mm.Brake collar B by PH corrosion-resistant steel S (corrosion-resistant steel of PH) constitute.At wall thickness is that 0.08mm, for example external diameter are that about 110mm, internal diameter are that about 85mm and circular cone drift angle are the yarn tensioning strip between about 90 ° to 120 °, can reach good operating characteristic.
The inside face of brake collar B is effective brake area, must be smooth and anti abrasive.In addition, brake collar must prolong, but in radially necessary deformable, or radially must be resilient.
Brake collar B for shown in the shop drawings 1 implements following step.
According to Fig. 2, at first, for example make an annular slab Z by punching press by a flat metal plate M.The internal diameter of annular solid is littler than the target inner diameter d i of brake collar.The external diameter of blank is bigger than the target outside diameter d a of brake collar B.
According to Fig. 3, slab Z for example by deep-draw, is configured as the shape of the freak oil Z1 of frusto-conical or frusto-conical in an instrument W.Because inevitable material displacement has taken place in the deep-draw process, blank Z has residue in size radially.Remaining size will be used in the deformation process in Fig. 3, so that make material generation cold conditions flow (cold flow).After distortion stopped, blank was cut, to obtain target size di and da.
The blank Z1 that has last size is carried out following processing:
The first, in austenite conditioning step I, blank Z at first is heated to for example 955 ℃, keeps under this temperature about 10 minutes.Then, this blank in atmosphere by cool to room temperature RT once more.
The second, in austeno-martensite-step of converting II-this step begins behind a hour behind the first step I, and blank Z1 is cooled to-73 ℃ approximately, keeps under this temperature then about 8 hours, then blank is warmed up to ambient-air temperature RT once more in atmosphere.
In follow-up PH Step II I, blank Z1 is heated once more, and optional heat was kept under this temperature about 90 minutes to about 510 ℃, was cooled to ambient-air temperature RT then in atmosphere.The brake collar B that the corrosion-resistant steel S that has made like this by PH constitutes.
Procedure of processing subsequently is dispensable, but visual particular case is implemented.
Except other component, deposit hardenable corrosion-resistant steel and contain chromium and nickel as main alloying component.Such steel itself is used to make the framed structure of spring, clip, aircraft and head tank.Use for these, the abrasion resistance properties of this steel be second important.On the contrary, according to the present invention, the abrasion test that deposits hardenable steel mainly is utilized to brake a particularly advantageous effect of yarn.
Claims (8)
1. annular stop band (B) that is used for Yarn Brake, described brake collar has the shape of the frustum of a cone overcoat of making by the deformability cold of slab (Z), described blank (Z) is made by sheet metal (M), it is characterized in that, brake collar (B) by PH corrosion-resistant steel (S) (corrosion-resistant steel of PH) make.
2. make the method for the annular stop band that is used for Yarn Brake, this brake collar has the shape of truncated cone, according to this method, a flat, annular blank is made for frusto-conical by deformability cold, it is characterized in that, blank (Z) is made by the metal sheet (M) of the corrosion-resistant steel (S) that can be hardened by PH, and blank is deposited sclerosis behind deformability cold.
3. according to the method for claim 2, it is characterized in that, blank (Z) is stamped and carries out deformability cold, and this is undertaken by deep-draw in instrument (W), and hardening process comprises austenite conditioning step (I), austeno-martensite-step of converting (II) and PH step (III).
4. according to the method for claim 2, it is characterized in that, deformability cold blank (Z1) be heated to and be lower than 1000 ℃ slightly, preferred 955 ℃, under this temperature, kept about 10 minutes, cool to room temperature (RT) (austenite conditioning) in atmosphere then, in one hour, be cooled to-73 ℃ approximately subsequently, under this chilling temperature, kept about 8 hours, be warmed up to room temperature (step of converting) then in atmosphere, this blank is heated to a little more than 500 ℃ at last, preferred 510 ℃, under this temperature, kept about 90 minutes, then cool to room temperature (RT) (PH) in atmosphere.
5. according to the method for claim 2, it is characterized in that blank (Z) is stamped into radially has the flat ring body of surplus size, and after the distortion before cure process radial cuts to it target size (di, da).
6. according to the method for claim 2, it is characterized in that blank (Z) is stamped into radially has the flat ring body of surplus size, and after cure process radial cuts to it target size (di, da).
7. according to the method for claim 2, it is characterized in that a uniform wall thickness (y) is provided, and its scope is 0.01mm-0.5mm, preferably between 0.05mm-0.3mm in the deformability cold process.
8. according at least one method in the claim 2 to 7, it is characterized in that blank (Z) is stamped to form (grinding annealing, ie in solution furnace run and quick cooling) by a metal sheet (M) of having annealed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10055275A DE10055275A1 (en) | 2000-11-08 | 2000-11-08 | Mill annealed process to manufacture stainless steel yarn brake as a truncated cone |
DE10055275.7 | 2000-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1473131A true CN1473131A (en) | 2004-02-04 |
CN1255312C CN1255312C (en) | 2006-05-10 |
Family
ID=7662522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018185231A Expired - Lifetime CN1255312C (en) | 2000-11-08 | 2001-11-07 | Endless yarn tensioning strip and method for producing the same |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040026562A1 (en) |
EP (1) | EP1337453B1 (en) |
CN (1) | CN1255312C (en) |
AU (1) | AU2002217004A1 (en) |
DE (2) | DE10055275A1 (en) |
TR (1) | TR200401641T4 (en) |
WO (1) | WO2002038477A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100441704C (en) * | 2006-12-29 | 2008-12-10 | 长安汽车(集团)有限责任公司 | Continuous intensification method of 0Cr17Ni7A1 material after timing heat treatment |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10056485B4 (en) * | 2000-11-15 | 2013-11-28 | Iropa Ag | Yarn braking ring |
WO2004033126A1 (en) | 2002-09-13 | 2004-04-22 | Daimlerchrysler Ag | Press-hardened part and method for the production thereof |
CN100431778C (en) * | 2006-08-21 | 2008-11-12 | 玉环海荣金属制品有限公司 | Method for making stainless steel ware |
CN113088669B (en) * | 2021-04-01 | 2022-12-27 | 山西太钢不锈钢股份有限公司 | Method for improving surface hardness of semi-austenite precipitation hardening stainless steel precision strip steel |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2218976A (en) * | 1937-11-05 | 1940-10-22 | Hosiery Patents Inc | Knitting machine |
DE69223575T2 (en) * | 1991-09-20 | 1998-04-16 | Lgl Electronics Spa | Self-regulating thread brake for a weft feed device |
IT1256329B (en) * | 1992-11-23 | 1995-11-30 | WIRE FEEDING DEVICE | |
SE508684C2 (en) * | 1993-10-07 | 1998-10-26 | Sandvik Ab | Precision-hardened iron alloy with quasi-crystalline structure particles |
US5533330A (en) * | 1993-12-27 | 1996-07-09 | United Technologies Corporation | Ignitor plug guide for a gas turbine engine combustor |
US5546994A (en) * | 1994-10-14 | 1996-08-20 | Sobrevin Societe De Brevets Industriels-Etablissement | Thread storage drum with frustoconical brake strip |
US5855844A (en) * | 1995-09-25 | 1999-01-05 | Crs Holdings, Inc. | High-strength, notch-ductile precipitation-hardening stainless steel alloy and method of making |
DK173348B1 (en) * | 1996-06-07 | 2000-08-07 | Man B & W Diesel As | Exhaust valve for an internal combustion engine |
DE19649220A1 (en) * | 1996-11-27 | 1998-05-28 | Iro Ab | Thread delivery device with a thread brake |
US6017274A (en) * | 1997-09-02 | 2000-01-25 | Automotive Racing Products, Inc. | Method of forming a fastener |
IT1320321B1 (en) * | 2000-04-28 | 2003-11-26 | Lgl Electronics Spa | ANTIBALLOON OR SIMILAR DEVICE TYPICALLY BUT NOT EXCLUSIVELY FOR WEFT FEEDERS IN WEAVING FRAMES, PARTICULARLY |
-
2000
- 2000-11-08 DE DE10055275A patent/DE10055275A1/en not_active Withdrawn
-
2001
- 2001-11-07 WO PCT/EP2001/012881 patent/WO2002038477A1/en not_active Application Discontinuation
- 2001-11-07 CN CNB018185231A patent/CN1255312C/en not_active Expired - Lifetime
- 2001-11-07 US US10/415,026 patent/US20040026562A1/en not_active Abandoned
- 2001-11-07 TR TR2004/01641T patent/TR200401641T4/en unknown
- 2001-11-07 DE DE50102555T patent/DE50102555D1/en not_active Expired - Fee Related
- 2001-11-07 AU AU2002217004A patent/AU2002217004A1/en not_active Abandoned
- 2001-11-07 EP EP01993573A patent/EP1337453B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100441704C (en) * | 2006-12-29 | 2008-12-10 | 长安汽车(集团)有限责任公司 | Continuous intensification method of 0Cr17Ni7A1 material after timing heat treatment |
Also Published As
Publication number | Publication date |
---|---|
CN1255312C (en) | 2006-05-10 |
TR200401641T4 (en) | 2004-08-23 |
WO2002038477A9 (en) | 2002-09-19 |
DE50102555D1 (en) | 2004-07-15 |
US20040026562A1 (en) | 2004-02-12 |
AU2002217004A1 (en) | 2002-05-21 |
EP1337453B1 (en) | 2004-06-09 |
EP1337453A1 (en) | 2003-08-27 |
DE10055275A1 (en) | 2002-05-23 |
WO2002038477A1 (en) | 2002-05-16 |
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