WO2007022659A1 - Cable a dents de scie - Google Patents

Cable a dents de scie Download PDF

Info

Publication number
WO2007022659A1
WO2007022659A1 PCT/CH2006/000452 CH2006000452W WO2007022659A1 WO 2007022659 A1 WO2007022659 A1 WO 2007022659A1 CH 2006000452 W CH2006000452 W CH 2006000452W WO 2007022659 A1 WO2007022659 A1 WO 2007022659A1
Authority
WO
WIPO (PCT)
Prior art keywords
sawtooth
sawtooth wire
tooth
wire
teeth
Prior art date
Application number
PCT/CH2006/000452
Other languages
German (de)
English (en)
Inventor
Werner Hirschle
Götz Theodor Gresser
Original Assignee
Maschinenfabrik Rieter 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
Priority claimed from DE200510040249 external-priority patent/DE102005040249A1/de
Application filed by Maschinenfabrik Rieter Ag filed Critical Maschinenfabrik Rieter Ag
Priority to EP06775146A priority Critical patent/EP1917387A1/fr
Publication of WO2007022659A1 publication Critical patent/WO2007022659A1/fr

Links

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

Definitions

  • the present invention relates to a sawtooth wire for producing a sawtooth all-steel clothing for the processing of textile fibers, in particular for producing a sawtooth all-steel clothing for the customer of a card.
  • the wire has a plurality of teeth arranged one behind the other in the longitudinal direction of the wire, each of which has a tooth face extending from a tooth base towards a tooth tip and a tooth back extending from the tooth tip towards the following tooth base.
  • the fiber backing is fed to the card in the form of a cotton wool.
  • the cotton wool is pre-cleaned by the licker-in (formerly called Briseur). This consists of 1 to 3 rollers with relatively coarse sets, which further dissolve the flakes and pass it to the drum.
  • the fibers are removed by the taker in the form of a nonwoven and passed to the card runner to form a sliver.
  • the mode of operation of the customer is well known to the person skilled in the art and is summarized and set forth, for example, in the handbook of textile production "Die Kurzstapelspinnerei" Volume 2: Putzerei und Karderie (author: W. Klein, publisher: The Textile Institute), page 50.
  • EP-A-1136599 therefore proposes another solution to this problem.
  • the backs of the teeth have specially formed sections which should increase the holding force generated by the clothing on the nonwoven fabric.
  • the EP document does not suggest any other changes in tooth geometry.
  • the tooth enhancements discussed in EP-A-1136599 can also be used in combination with the present invention - but they do not solve the problems set out below in all cases.
  • the working width of the drum has been increased from the usual value in the range of 1 m to 1.5 m.
  • the diameter of the drum is reduced from the usual 1.3 m to about 0.814 m.
  • a card with a reduced drum diameter is preferably operated at a relatively high speed to achieve a higher centrifugal force. Due to the changed geometry and the correspondingly altered processing parameters, the card can process more than 180 kg / h of cotton today.
  • cards of this type should continue to be able to produce relatively fine slivers (for example, with band numbers in the range of 4 to 6 ktex), at least for certain spinning mills, for example in Asia. This results in a relatively high discharge speed, which brings relatively high speeds of all rolls in the acceptance and discharge areas with it.
  • the present invention has the object to provide a sawtooth wire, which allows the production of a sawtooth all-steel set for the customer of a card, with the early solution of the nonwoven fabric can be reliably avoided.
  • the sawtooth wires intended for processing textile fibers can be produced by forming a starting material into a wire section having a blade section and then punching saw teeth into the blade section.
  • Figure 1 is a schematic side view of a card
  • Figure 2 is a schematic side view of a sawtooth wire similar to the prior art in Figure 1a of
  • FIG 3 is a copy of Figure 2 with changes according to federally agreeditodian
  • Figure 1 shows schematically a Wanderdeckelkarde, for example, the Rieter card C60 with a working width greater than 1.3 m, in particular of 1.5 m.
  • the principles of Invention may be up to a working width of about 2 m and they can also be used in cards with a conventional working width of about 1 m.
  • the working width of the machine is effectively determined by the axial length of the garnished surface on the drum 1.
  • the shaft 16 in Figure 1 is designed as a so-called "cleaner shaft” with a cleaning module 15 between the shaft top and the manhole base, but this is not essential to the present invention, instead of a cleaner shaft, a normal hopper may also be provided Fibers then as cotton to the card on, namely to a known feed device (not specifically designated), which feeds the cotton at a predetermined speed in the card.
  • the feeder feeds the fibers to a licker-in module 3.
  • the module 3 in Fig. 1 comprises a plurality of licker-in rollers, but only a single licker-in can be provided.
  • licker-in module 3 the fiber flakes are opened further and some of the dirt particles are removed.
  • the (last) Vorreisserwalze passes the fibers to the card drum 1.
  • the card drum works in the so-called Hauptkardier Scheme 8 (angle range ⁇ ) with the lids 7 together and opens and cleans the fibers even further.
  • the covers 7 are supported by belts which are guided by deflection or drive rollers 6.
  • the covers 7 are cleaned by a lid cleaning 14 and possibly ground with a grinding device.
  • the drum 1 can be divided into four zones: in the main carding zone 8, the drum 1 normally cooperates with a traveling lid unit 2, as shown, although arrangements with so-called fixed covers are also known.
  • the pre-carding zone is located between the licker-in and the main carding zone, while the post-carding zone is provided between the main carding zone and the pick-up is.
  • the Vorkardier- and Nachkardierzonen mostly arrangements of stationary cleaning elements are provided, such as hard covers with trimmings, knives and suction elements.
  • the lower carding zone which is designed differently depending on the make.
  • the pickup 4 After the fibers have partly carried out several cycles on the card drum 1, they are removed by the pickup 4 from the card drum 1 in the form of a loose web, fed to the outlet area 5 and finally deposited as a card sliver by means of a can-stock in a jug (not shown ).
  • the pickup 4 As described by Klein in the aforementioned manual, the pickup 4 must be provided with a special set in order to fulfill its task.
  • the standard versions of this set today use a chest angle ⁇ in the range 20 ° to 30 ° (see Klein, manual as mentioned above, page 54, as well
  • the pickup may under-apply too low a holding force to the low-coherence non-woven fabric.
  • the nonwoven then tends to be at the bottom of the pickup 4, as indicated schematically in the figure 1 with the arrow P, to be detached from the clothing and fall off or hang. This can lead to significant running problems.
  • a partial solution would be to attach a casing to the underside of the pickup. But the causes of the problems are not eliminated.
  • the present invention therefore seeks relief in a new development of
  • the sawtooth wire 10 shown in Figure 2 comprises according to the prior art (EP-A-1136599) a foot portion 12 and a blade portion 14.
  • the total height H of this sawtooth wire 10 is 4 mm.
  • a number of teeth 20 arranged one behind the other in the longitudinal direction of the wire are punched.
  • Each of these teeth 20 has a tooth face 22 extending from a tooth base 21 to a tooth tip 26 and a tooth back 24 extending from the tooth tip 26 to the next tooth base 21.
  • the distance d between successive teeth is 1.96 mm.
  • the tooth incision depth h is 2.2 mm.
  • the term tooth root used above refers to the location of the deepest tooth incision between successive teeth 20.
  • the breast angle ⁇ is 30 ° and the back angle ⁇ is 48 °.
  • Embodiments of a sawtooth wire 10 or a clothing according to the invention is basically to increase the holding power of the clothing, so that the new clothing is certainly able to hold the web on the underside of the pickup. However, the holding force must not be increased to such an extent that the clothing is no longer able to dispense the fleece cleanly to the carding outlet 5.
  • the breast angle ⁇ according to the prior art has been increased to ⁇ i.
  • the back angle ß has been maintained unchanged, so that the wedge angle, which is enclosed by the tooth flanks smaller becomes.
  • the risk of tooth damage is increased somewhat, so that a set with such a wire would not be suitable for all fiber assortments.
  • the benefits outweigh, however, for certain important applications.
  • the breast angle ⁇ i can now be selected between 32 ° and 45 °, with a breast angle ⁇ i between 34 ° and 37 °, for example 35 °, being preferred.
  • a breast angle Q 1 between 38 ° and 42 °, in particular between 39 ° and 41 ° and, for example, 40 ° may prove necessary (depending on the fiber assortment or on the operating parameters of the card) to overcome the problems of early nonwoven detachment To bring a handle.
  • tooth pitch in the range 1.9 to 2.2 mm, for example, between 2.1 and 2.2 mm has proved to be useful.
  • the changed parameters ⁇ i and d1 according to FIG. 3 are again indicated in accordance with FIG. 3 and they also apply to this second embodiment.
  • the tooth incision depth h (FIGS. 2 and 3) has been increased, in particular-as indicated by dashed lines on the "underlying" tooth base 21 A.
  • the incision depth is therefore shown in FIG
  • the total height H (Fig. 2 and Fig. 3) has been adapted in the embodiment according to the figure 4 and is therefore again designated by the reference numeral H1.
  • the total height H1 of the tooth in a sawtooth wire 10 according to the present invention is less than 5.5 mm and preferably less than 5.2 mm, for example in the range 4.7 mm to 5 mm. Under certain circumstances (depending on the supplier), however, the overall height H1 can be selected appropriately between 3.5 and 4.3 mm and is then preferably between 3.8 and 4.1 mm, for example 4 mm.
  • the tooth incision depth h1 in an embodiment according to the invention should be less than 2.4 mm and is preferably between 2.0 and 2.3 mm, in particular between 2.1 and 2.25 mm, for example at 2.16 mm.
  • the back angle ⁇ of a sawtooth wire 10 according to this invention can be chosen between 40 ° and 60 ° and is preferably in the range 50 ° to 56 °.
  • a wire according to this invention may be mounted on a roll to provide a pick-up set having a peak density in the range 250 to 400 ppsi (points per square inch). The preferred peak density is in the range of 280 to 340 ppsi.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un câble à dents de scie pour produire une garniture tout-acier en dents de scie pour traiter des fibres textiles, notamment pour produire une garniture tout-acier en dents de scie pour l'utilisateur d'une cardeuse. L'angle d'inclinaison α1 se situe à nouveau entre 32 et 45°.
PCT/CH2006/000452 2005-08-24 2006-08-22 Cable a dents de scie WO2007022659A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06775146A EP1917387A1 (fr) 2005-08-24 2006-08-22 Cable a dents de scie

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005040249.6 2005-08-24
DE200510040249 DE102005040249A1 (de) 2005-08-24 2005-08-24 Sägezahndraht
CH2692006 2006-02-21
CH269/06 2006-02-21

Publications (1)

Publication Number Publication Date
WO2007022659A1 true WO2007022659A1 (fr) 2007-03-01

Family

ID=37103322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2006/000452 WO2007022659A1 (fr) 2005-08-24 2006-08-22 Cable a dents de scie

Country Status (2)

Country Link
EP (1) EP1917387A1 (fr)
WO (1) WO2007022659A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2460328A (en) * 2008-05-31 2009-12-02 Truetzschler Gmbh & Co Kg Card clothing point densities
WO2010016872A1 (fr) * 2008-08-06 2010-02-11 Nv Bekaert Sa Ensemble de fil de carde à fils multiples et cylindre de cardage avec un tel ensemble de fil
CN103952630A (zh) * 2007-06-11 2014-07-30 特鲁菲舍尔股份有限公司及两合公司 用于生产全钢锯齿针布的锯齿金属丝
EP4269672A1 (fr) * 2022-04-26 2023-11-01 Groz-Beckert KG Fil de garniture de carde, machine de cardage et procédé de production d'un non tissé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262919A (ja) * 1985-09-11 1987-03-19 Kanai Hiroyuki 梳綿機
EP1136599A1 (fr) * 2000-03-15 2001-09-26 Graf + Cie Ag Fil en dents de scie
US6408487B1 (en) * 1998-10-30 2002-06-25 Commonwealth Scientific And Industrial Research Organisation Card wire, especially for doffers and workers
US20030116006A1 (en) * 1999-11-10 2003-06-26 Graf Ralph A. Sawtooth wire
EP1333113A1 (fr) * 2002-01-31 2003-08-06 Graf + Cie Ag Garniture à dents de scie pour le peigne d'une peigneuse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262919A (ja) * 1985-09-11 1987-03-19 Kanai Hiroyuki 梳綿機
US6408487B1 (en) * 1998-10-30 2002-06-25 Commonwealth Scientific And Industrial Research Organisation Card wire, especially for doffers and workers
US20030116006A1 (en) * 1999-11-10 2003-06-26 Graf Ralph A. Sawtooth wire
EP1136599A1 (fr) * 2000-03-15 2001-09-26 Graf + Cie Ag Fil en dents de scie
EP1333113A1 (fr) * 2002-01-31 2003-08-06 Graf + Cie Ag Garniture à dents de scie pour le peigne d'une peigneuse

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103952630A (zh) * 2007-06-11 2014-07-30 特鲁菲舍尔股份有限公司及两合公司 用于生产全钢锯齿针布的锯齿金属丝
GB2460328A (en) * 2008-05-31 2009-12-02 Truetzschler Gmbh & Co Kg Card clothing point densities
US8132297B2 (en) 2008-05-31 2012-03-13 Truetzschler Gmbh & Co. Kg Apparatus on a flat card or roller card having a cylinder and at least one doffer
GB2460328B (en) * 2008-05-31 2012-08-15 Truetzschler Gmbh & Co Kg Apparatus on a flat card or roller card having a cylinder and at least one doffer
WO2010016872A1 (fr) * 2008-08-06 2010-02-11 Nv Bekaert Sa Ensemble de fil de carde à fils multiples et cylindre de cardage avec un tel ensemble de fil
US7735201B1 (en) 2008-08-06 2010-06-15 Nv Bekaert Sa Multiple wire card wiring, carding cylinder, and method of making such
EP4269672A1 (fr) * 2022-04-26 2023-11-01 Groz-Beckert KG Fil de garniture de carde, machine de cardage et procédé de production d'un non tissé
WO2023208733A1 (fr) * 2022-04-26 2023-11-02 Groz-Beckert Kg Fil de garniture de carde, carde et procédé de fabrication d'un non-tissé

Also Published As

Publication number Publication date
EP1917387A1 (fr) 2008-05-07

Similar Documents

Publication Publication Date Title
DE3224118C1 (de) Krempel zur Vliesherstellung aus Faserstoffen
DE60113531T2 (de) Geänderter krempelbetrieb beim textile kordieren
CH701581B1 (de) Vorrichtung an einer Karde oder Krempel zur Reinigung von Fasermaterial z.B. aus Baumwolle.
CH698961A2 (de) Vorrichtung an einer Karde oder Krempel mit einer Trommel und mindestens einem Abnehmer.
DE2343064A1 (de) Vorrichtung zur herstellung von faservliesen aus textilen faserstoffen u. dgl
DE102005040249A1 (de) Sägezahndraht
WO2007022659A1 (fr) Cable a dents de scie
EP3162927B1 (fr) Cardeuse à chapeaux tournants
AT501434B1 (de) Vlieszuführvorrichtung
DE3632483A1 (de) Universalmaschine zum wahlweisen herstellen von laengsorientierten vliesen oder wirrvliesen
EP3662099B1 (fr) Carde
DE2250834A1 (de) Vorrichtung zur bildung eines faserbandes aus einem von einer textilkarde abgelieferten faserflor sowie mit einer solchen vorrichtung ausgeruestete textilkarde
EP1236817B1 (fr) Dispositif d'ouverture et de nettoyage de matière fibreuse
EP1408142B1 (fr) Fil de fer à dents de scie pour garniture de carde
EP1313901B1 (fr) Dispositif tel qu'une machine a carder destine au traitement de fibres
EP1227179B1 (fr) Garniture de carde
EP3693498B1 (fr) Garniture de chapeau pour un chapeau marchant d'une carde
DE69202922T2 (de) Krempel.
EP1241285B1 (fr) Dispositif de traitement de fibres dans une carde
DE3334912C1 (de) Karde oder Krempel zum wahlweisen Herstellen von laengsorientierten Vliesen oder Wirrvliesen
DE19530715A1 (de) Verfahren und Anlage zur Herstellung von Faserbändern für Spinnmaschinen
EP1176236B1 (fr) Garniture en éléments de dents de scie
DE2053854A1 (de) Vorrichtung zum Krempeln von Fasern
DE2335057A1 (de) Metallener kardierbeschlag
WO2007048262A2 (fr) Cylindre d'ouverture et puits de remplissage pour machine a carder

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006775146

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 303/MUMNP/2008

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 200680030499.4

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 2006775146

Country of ref document: EP