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EP1318218B1 - Fil à dent de scie - Google Patents

Fil à dent de scie Download PDF

Info

Publication number
EP1318218B1
EP1318218B1 EP03000810A EP03000810A EP1318218B1 EP 1318218 B1 EP1318218 B1 EP 1318218B1 EP 03000810 A EP03000810 A EP 03000810A EP 03000810 A EP03000810 A EP 03000810A EP 1318218 B1 EP1318218 B1 EP 1318218B1
Authority
EP
European Patent Office
Prior art keywords
tooth
saw
foot
blade
less
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 - Lifetime
Application number
EP03000810A
Other languages
German (de)
English (en)
Other versions
EP1318218A1 (fr
Inventor
Ralph A. Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graf und Cie AG
Original Assignee
Graf und Cie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Graf und Cie AG filed Critical Graf und Cie AG
Priority to DE59911815T priority Critical patent/DE59911815D1/de
Priority to ES03000810T priority patent/ES2236626T3/es
Publication of EP1318218A1 publication Critical patent/EP1318218A1/fr
Application granted granted Critical
Publication of EP1318218B1 publication Critical patent/EP1318218B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/88—Card clothing; Manufacture thereof not otherwise provided for formed from metal sheets or strips
    • 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
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9319—Toothed blade or tooth therefor

Definitions

  • the invention relates to a sawtooth wire for producing a sawtooth all-steel set for the drum of a card according to the preamble of patent claim 1.
  • the card In fiber processing, the card is used to parallelize the individual fibers of a used raw material consisting of disordered fibers. This is indicated by the card usually a circular cylindrical spool and a number of over the peripheral surface of the drum distributed on top flat bars.
  • the card usually a circular cylindrical spool and a number of over the peripheral surface of the drum distributed on top flat bars.
  • the spool and the flat bars usually with by sawtooth wires equipped with all-steel sets, between which the parallelization proposal takes place.
  • the sawtooth full steel set of the spool is usually in shape a circular cylindrical surface of the spool helically encircling sawtooth wire formed while the sawtooth all-steel set the lid by side by side arranged sawtooth wire strips may be formed. With such cards More than 120 kg of raw material per hour can be processed or parallelized.
  • GB 2 322 640 A discloses a sawtooth wire for the feed roller Fiber processing device specified with a particularly low tooth incision depth.
  • DE-OS 2 222 918 a card clothing from a 0.3 - 2.0 Wt% carbon, 0.05-2.5 wt% silicon, 0.05-2.0 wt% manganese and 0.01-2.0 wt% Wt .-% vanadium-containing alloy, wherein the vanadium by 0.01 - 3.5 wt.% Tungsten can be replaced.
  • this object is achieved by the in the characterizing part of claim 1 specified development of the known sawtooth wires of the beginning described type consisting of a 0.40 - 0.60 wt.% Manganese and 0.60 - 0.70 wt .-% Consist of tungsten-containing alloy.
  • the invention is based on the knowledge that during operation of the Known cards observed wear of the drum sets primarily on the the captured between the blade sections of the individual coil of the clothing fibers attributable to the blade edges forces.
  • the width of Garniturgassen between the individual Spiraling the Tamlaubarnitur increased in relation to the sheet width, so as to solve the in To facilitate this Garniturgassen embedded fibers and the stress of the To reduce leaf edges through these fibers.
  • Further development of the known sawtooth wires of the free space between the Foot shoulder and the tooth tip increased, so that the fiber material has more space and easier to be removed from this space again.
  • the wear resistance of the sawtooth wire according to the invention Increasing increase in the space between the foot and the tooth tip becomes while ensuring a satisfactory carding result through use corresponding saw teeth allows when the ratio of the blade height to Tooth incision depth more than 1.5, preferably more than 1.8, more preferably about 2 is, which allow for the production of a satisfactory carding result
  • Saw teeth required tooth incision depth may be about 0.4 mm.
  • the ratio of Blade height to the tooth incision depth expediently to at most 3.5, preferably limited to 2.5.
  • the ratio of Blade height to the total height of the wire greater than 0.3, preferably greater than 0.4, more preferably about 0.45 but less than 0.6, preferably less than 0.5.
  • the total height of the Wire less than 2.0 mm, preferably about 1.8 mm, the foot height less than 1.4 mm, preferably about 1.0 mm.
  • Ratio of the blade height to the total height of the wire can in particular also a Good wear resistance can be ensured because by adjusting one in proportion to the overall height of sufficiently large blade height also a wear resistance increasing, particularly large clearance between the tooth tips and the foot shoulder ensured becomes.
  • the sawtooth wire according to the invention consists of alloyed steel.
  • This alloyed Steel contains 0.4 to 0.6 wt .-% manganese and may additionally 0.3 to 2.0, preferably 0.8 to 0.85% by weight of carbon, 0.1 to 2.0, preferably 0.15 to 0.2% vanadium, and / or 0.1 to 2.0, preferably 0.4 to 0.6 wt .-% chromium, wherein the proportions of phosphorus, sulfur, nickel and copper are kept minimal.
  • the proportion of phosphorus is expediently to less than 0.025 wt .-% and the sulfur content to less than 0.25 wt .-% limited.
  • the life of a using a inventive Sawtooth wire produced garnish be increased if the pitch error, i.e. the deviation from the nominal distance between the tooth tips in succession Teeth less than 2%, preferably less than 1.0%, because then at the correct Garniturmontlage leading to a first wear control or first-time Equalize is no longer necessary.
  • the minimization of the division error can be achieved in that during wire production, in particular during the Punching a high-precision wire feed is used, via a rule compensation calculator is controlled.
  • a corresponding sampling method for example a laser scanning method, can possibly occurring pitch errors during the Production to be detected and corrected immediately.
  • the individual teeth of the sawtooth wire according to the invention formed in the form of curved teeth with an arcuate tooth face are, wherein the radius of curvature of the tooth face suitably about 0.15 to 0.25 mm, more preferably about 0.19 mm.
  • This can be a gentle handle in the too parallelizing fiber material can be ensured when the tooth face towards the tooth tip in a rectilinear portion whose length is preferably in Range from 0.02 to 0.2 mm.
  • the sawtooth wire 10 shown in the drawing consists essentially of a foot portion 20 and a blade portion 30.
  • the foot portion 20 at its side facing away from the blade section 30 from a substantially flat lower Limiting surface 24 bounded by the two a right angle enclosing it Flank surfaces 26 and 28 go out and towards the blade portion 30th extend.
  • the foot section starts from the flank surface 26 via a foot shoulder 22 in the sheet section 30, which is provided with a number of teeth 32.
  • teeth 32 there are the teeth 32 by starting from the foot portion 20 facing away from the edge the blade portion 30 in the direction of the foot portion 20 extending tooth incisions 34 are formed.
  • the tooth pitch p i. Distance between the tooth tips of successive teeth is constant and amounts about 1.669 mm.
  • the flank surface 38 of the sheet portion 30 coplanar to the flank surface 28 of the foot portion 20 is formed, wherein the width of the blade portion starting from the tooth tips 32 in the direction of the Foot section 20 steadily increases.
  • the width b1 of the blade section is in the range of the tooth tips about 0.05 mm, while the width b2 of the blade portion 30 at the foot 20th is about 0.24 mm, with the width b4 at the intermediate point of the lowest Tooth incision is about 0.15 mm.
  • the width b3 of the foot section is above its entire height approximately constant and is in the embodiment shown in the drawing of the invention 0.4 mm.
  • the radius of curvature r is 0.19 mm.
  • Towards the Tooth tip 32 c runs the curved portion 32 a of the tooth face of the teeth 32 in one rectilinear extending portion 32b. Through this straight-line section a gentle engagement of the teeth is made possible in the fiber material.
  • the teeth 32 of the sawtooth wire shown in the drawing have in the region of their tips 32c in the stretched state, a breast angle ⁇ of 40 °.
  • the angle ⁇ between the approximately rectilinear tooth back and a perpendicular to the lower boundary surface 24th of the wire 10 extending line is 65 °, so that there is a wedge angle of 25 °.
  • the invention is not based on the illustrated with reference to the drawing embodiment limited. Rather, it is also due to the use of sawtooth wires with other dimensions thought. Furthermore, in the context of this invention also sawtooth wires with variable tooth pitch p are used. Incidentally, according to the invention also to the use Sawtooth wires with lockable foot sections thought.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (13)

  1. Fil métallique en dents de scie, destiné à la fabrication d'une garniture en dents de scie tout acier pour le tambour d'une carde, et comprenant une partie de base (20) et une partie formant lame (30) se raccordant à celle-ci par l'intermédiaire d'un épaulement (22) de la base, la partie formant lame (30) présentant des dents de scie (32), formées par des entailles (34) en dents partant du bord de la partie formant lame (30) qui est détourné de la partie de base (20), et dans lequel le rapport de la largeur (b3) de la base à la largeur (b4) de la lame est supérieur à 2 à l'emplacement de l'entaille la plus profonde, caractérisé en ce que le rapport de la largeur (b2) de la base à la largeur (b4) de la lame est inférieur à 3,5 à l'emplacement de l'entaille la plus profonde, et en ce que le fil en dents de scie est en acier allié, qui contient entre 0,40 et 0,60 % en poids de manganèse et de 0,60 à 0,70 % en poids de tungstène.
  2. Fil en dents de scie selon la revendication 1 ou 2, caractérisé en ce que la largeur de la lame augmente, au moins de façon régulière, depuis le bord de la partie formant lame (30), détourné de la partie de base (20), en direction de la partie de base (20), et en ce que le rapport de la largeur (b3) de la base à la largeur (b2) de la lame, au niveau de la base, est supérieur à 1,4.
  3. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que la largeur (b3) de la base est comprise dans la fourchette d'environ 0,2 à 0,6 mm.
  4. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que la largeur (b1) de la lame est comprise dans la fourchette d'environ 0,02 à 0,2 mm, au niveau du bord de la partie formant lame (30), qui est détourné de la partie de base (20).
  5. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que le rapport de la hauteur (h5) de la lame à la profondeur (h4) de l'entaille en dent est supérieur à 1,5.
  6. Fil métallique en dents de scie selon la revendication 5, caractérisé en ce que le rapport de la hauteur (h5) de la lame à la profondeur (h4) de l'entaille en dent est inférieur à 3,5.
  7. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que le rapport de la hauteur (h5) de la lame à la hauteur totale (h1) du fil métallique (10) est supérieur à 0,3.
  8. Fil métallique en dents de scie selon la revendication 7, caractérisé en ce que le rapport de la hauteur (h4) de la lame à la hauteur totale (h1) du fil métallique (10) est inférieur à 0,6.
  9. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que la hauteur totale (h1) du fil métallique est inférieure à 2,0 mm.
  10. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que la hauteur (h2) de la base est inférieure à 1,4 mm.
  11. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que l'acier allié contient de 0,80 à 0,85 % en poids de carbone et/ou de 0,15 à 0,20 % en poids de vanadium, et/ou moins de 0,02 % en poids de phosphore et moins de 0,02 % en poids de soufre.
  12. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que la rugosité au niveau des flancs latéraux (38) de la partie formant lame (30) est inférieure à 5 µm, au moins dans la zone des dents (32).
  13. Fil métallique en dents de scie selon l'une des revendications précédentes, caractérisé en ce que l'erreur de pas, c'est-à-dire la déviation par rapport à l'écartement de consigne entre les pointes de dent (32c) de dents (32) successives, est inférieure à 2 % et, de préférence, inférieure à 1 %.
EP03000810A 1999-11-10 1999-11-10 Fil à dent de scie Expired - Lifetime EP1318218B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59911815T DE59911815D1 (de) 1999-11-10 1999-11-10 Sägezahndraht
ES03000810T ES2236626T3 (es) 1999-11-10 1999-11-10 Alambre de dientes de sierra.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99122418A EP1099783B1 (fr) 1999-11-10 1999-11-10 Fil à dent de scie

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP99122418A Division EP1099783B1 (fr) 1999-11-10 1999-11-10 Fil à dent de scie

Publications (2)

Publication Number Publication Date
EP1318218A1 EP1318218A1 (fr) 2003-06-11
EP1318218B1 true EP1318218B1 (fr) 2005-03-23

Family

ID=8239364

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03000810A Expired - Lifetime EP1318218B1 (fr) 1999-11-10 1999-11-10 Fil à dent de scie
EP99122418A Expired - Lifetime EP1099783B1 (fr) 1999-11-10 1999-11-10 Fil à dent de scie

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99122418A Expired - Lifetime EP1099783B1 (fr) 1999-11-10 1999-11-10 Fil à dent de scie

Country Status (11)

Country Link
US (1) US20030116006A1 (fr)
EP (2) EP1318218B1 (fr)
JP (1) JP2001162440A (fr)
AT (2) ATE246272T1 (fr)
BR (1) BR0005315A (fr)
CA (1) CA2325508A1 (fr)
DE (3) DE29924404U1 (fr)
ES (2) ES2236626T3 (fr)
MX (1) MXPA00011036A (fr)
TR (1) TR200003334A2 (fr)
TW (1) TW522183B (fr)

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DE10063567A1 (de) * 2000-12-20 2002-07-04 Scintilla Ag Sägeblatt
DE10254918A1 (de) 2002-11-25 2004-06-09 Hollingsworth Gmbh Ganzstahlgarnitur für Walzen und/oder Trommeln von Karden oder Krempeln
JP2004244734A (ja) * 2003-02-12 2004-09-02 Kanai Hiroaki 紡機用メタリックワイヤ
US7225714B2 (en) * 2004-12-22 2007-06-05 Black & Decker Inc. Tooth form design for reciprocating saw blade
ATE427723T1 (de) * 2004-09-08 2009-04-15 Coloplast As Aktivitats-ostomiebeutel
EP1917387A1 (fr) * 2005-08-24 2008-05-07 Maschinen Fabrik Rieter AG Cable a dents de scie
DE102005040249A1 (de) * 2005-08-24 2007-03-01 Maschinenfabrik Rieter Ag Sägezahndraht
EP1820618B1 (fr) * 2006-02-16 2013-04-10 Tyrolit - Schleifmittelwerke Swarovski K.G. Outil de coupe
DE102006030418B4 (de) * 2006-06-29 2021-06-10 Trützschler GmbH & Co Kommanditgesellschaft Sägezahndraht zur Herstellung einer Sägezahnganzstahlgarnitur für eine Walze oder ein Kardierelement einer Spinnereimaschine
DE102007062841A1 (de) * 2007-12-21 2009-06-25 TRüTZSCHLER GMBH & CO. KG Sägezahnganzstahlgarnitur für Walzen und/oder Trommeln von Karden oder Krempel
CN102548697B (zh) * 2009-07-27 2015-08-19 艾温工业工具公司 在节距模型内具有单级和多级设定模型的锯条及相关方法
DE102009051427A1 (de) * 2009-10-30 2011-05-12 Saarstahl Aktiengesellschaft Stahllegierung und Verwendung eines solchen legierten Stahles
CN102768007A (zh) * 2012-06-17 2012-11-07 淮北宇光纺织器材有限公司 针布测高声光显示及控制装置
DE102016114622A1 (de) * 2016-08-08 2018-02-08 TRüTZSCHLER GMBH & CO. KG Sägezahndraht
CH713140A1 (de) * 2016-11-16 2018-05-31 Graf Cie Ag Garniturdraht.
JP6938084B2 (ja) * 2017-07-26 2021-09-22 株式会社ディスコ ブレード保持具
US10537951B2 (en) 2017-08-16 2020-01-21 Black & Decker Inc. Band saw blade for cutting structural workpieces
EP3473754B1 (fr) * 2017-10-20 2021-05-19 Groz-Beckert KG Fil de garniture
CN110744139B (zh) * 2019-09-24 2020-07-17 孙禹平 抗冲击间隔硬质合金锯及制造方法

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Also Published As

Publication number Publication date
ES2200455T3 (es) 2004-03-01
TR200003334A3 (tr) 2001-06-21
EP1099783A1 (fr) 2001-05-16
JP2001162440A (ja) 2001-06-19
TR200003334A2 (tr) 2001-06-21
US20030116006A1 (en) 2003-06-26
ATE246272T1 (de) 2003-08-15
TW522183B (en) 2003-03-01
BR0005315A (pt) 2001-06-12
ATE291652T1 (de) 2005-04-15
MXPA00011036A (es) 2003-04-25
CA2325508A1 (fr) 2001-05-10
ES2236626T3 (es) 2005-07-16
EP1099783B1 (fr) 2003-07-30
DE59906445D1 (de) 2003-09-04
EP1318218A1 (fr) 2003-06-11
DE59911815D1 (de) 2005-04-28
DE29924404U1 (de) 2003-02-06

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