EP3473754B1 - Garniturdraht - Google Patents

Garniturdraht Download PDF

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Publication number
EP3473754B1
EP3473754B1 EP17197463.7A EP17197463A EP3473754B1 EP 3473754 B1 EP3473754 B1 EP 3473754B1 EP 17197463 A EP17197463 A EP 17197463A EP 3473754 B1 EP3473754 B1 EP 3473754B1
Authority
EP
European Patent Office
Prior art keywords
tooth
card wire
clothing
longitudinal direction
angle
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.)
Active
Application number
EP17197463.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3473754A1 (de
Inventor
Peter HEISSEL
Stefan Lohrmann
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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 Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP17197463.7A priority Critical patent/EP3473754B1/de
Priority to BR102018014143-0A priority patent/BR102018014143B1/pt
Priority to JP2018179205A priority patent/JP2019077978A/ja
Priority to KR1020180123674A priority patent/KR102652089B1/ko
Priority to US16/165,338 priority patent/US10988863B2/en
Priority to CN201811222115.XA priority patent/CN109695075B/zh
Publication of EP3473754A1 publication Critical patent/EP3473754A1/de
Application granted granted Critical
Publication of EP3473754B1 publication Critical patent/EP3473754B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/26—Arrangements or disposition of carding elements
    • 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
    • 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
    • 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
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means

Definitions

  • the invention relates to a clothing wire for a roller of a carding machine.
  • a fiber web can be produced from a fiber material by the carding process.
  • the fiber pile consists of a loose composite of ordered individual fibers.
  • a fleece for example, can be produced from such a fiber web.
  • the fiber web is created during carding by removing the fibers from a large clothing roller, also known as a tambour, with the help of a removal device and gathering them together.
  • the carding machine can have different clothing rollers. Each clothing roller is covered with teeth, prongs or points that project approximately radially outward. The number and / or the size / or the density of the teeth, serrations or points, their shape and shape can vary.
  • the clothing rollers are usually provided with all-steel clothing. These consist of a profiled clothing wire that is wound onto the relevant clothing roller under tension.
  • the trim wire has a foot section and a blade section.
  • the foot section can, for example, be rectangular or square in cross section.
  • the blade section protrudes from the foot section, in the position of use approximately transversely to the jacket surface of the clothing roller.
  • a sawtooth profile is provided on the blade section to form the teeth or prongs.
  • the clothing wire is wound around the outer surface of the clothing roller under longitudinal tension and the two ends are attached to the clothing roller.
  • Set wires are known in many different designs.
  • special Proposed groups of clothing wires each with specific geometric features.
  • the EP2489766A2 discloses an all-steel clothing which is formed from two clothing wires with different tooth geometries which are drawn next to one another on a clothing roller.
  • the first clothing wire has a negative working angle and a tip surface, while the second clothing wire has a positive working angle.
  • This combination is intended to create an all-steel clothing which, on the one hand, has the necessary aggressiveness and, on the other hand, prevents the fibers from penetrating into the clothing and ultimately preventing the clothing from clogging. Every single one of the two clothing wires cannot meet the requirements of the all-steel clothing.
  • the WO00 / 26450A1 , the WO2011 / 138322A1 and the WO2013 / 037711A1 show clothing wires that are particularly suitable for so-called worker rolls, doffer rolls or transfer rolls.
  • the teeth of these clothing wires are typically punched in relatively deep compared to the total height of the clothing wire and their tooth face is inclined relatively sharply forwards in the direction of the foot section.
  • the tooth face is the side of the tooth that comes into direct contact with the fibers during carding.
  • the specified publications show areas of the tooth face which are inclined even further towards the foot of the clothing in order to increase the carding effect of the clothing.
  • a region of the tooth face that is more inclined towards the foot of the set can be referred to as an undercut.
  • the WO2013 / 037711A1 therefore proposes to further the WO00 / 26450A1 a special geometry in the course of the tooth face, especially in the undercut.
  • the object is achieved by a clothing wire according to claim 1.
  • the clothing wire according to the invention is particularly suitable for a consumer clothing, a workers clothing or a transmission clothing.
  • the clothing wire In its longitudinal direction, the clothing wire has successive teeth which are arranged spaced apart in the longitudinal direction.
  • the spacing of the division can advantageously be measured from tooth tip to tooth tip.
  • the teeth are delimited in the longitudinal direction on a first side by a tooth face and on a second side by a tooth back.
  • the tooth face and the tooth back of successive teeth viewed downwards in the vertical direction of the clothing wire, merge into one another in a tooth base. Viewed upwards in the vertical direction of the clothing wire, the tooth face and the tooth back form the tooth tip at their intersection.
  • the tooth depth is determined by the greatest distance in the vertical direction of the clothing wire from the tooth tip to the tooth base.
  • the clothing wire according to the invention is characterized in that a distance, measured perpendicular to a tangent to a point of inflection between the back of the tooth and the base of the tooth, from this point of inflection to the opposite tooth face is greater than a quarter of the pitch. It is also advantageous if the distance is greater than the quotient of the division and 3.5 or greater than the quotient of the division and 3.
  • the turning point in the transition from the tooth back to the tooth bottom can be clearly determined as follows. Apart from local shaped elements such as elevations or depressions, the tooth back has a tangent essentially at every point, which includes an acute angle to the longitudinal direction. In the tooth base there is at least one point at which the tangent to the clothing wire runs in the longitudinal direction. Starting from this point with a tangent in the longitudinal direction to the back of the tooth, the turning point is at the first point at which the angle of the tangent at this point assumes a smaller or equal angle to the longitudinal direction compared to the closest previous point.
  • the clothing wire according to the invention preferably has a pitch smaller than 3.2 mm. A division of less than 2.6 mm is particularly advantageous.
  • the set wire can have an angle to the longitudinal direction of between 45 ° and 65 ° in the tooth face.
  • the set wire can have an angle to the longitudinal direction of between 50 ° and 60 ° in the tooth face.
  • This angular range can particularly advantageously be present on the tooth face below any steeper tip section that may be present and below any undercut that may be present.
  • the tooth face can run straight and have a single angular value from this range. However, it is also possible that the tooth face is curved and assumes different angles from this angular range in the course of the tooth face.
  • the tooth base of the clothing wire can be designed in the shape of a circular arc.
  • a rounded tooth base is particularly advantageous because then there are no edges or corners where fibers can easily get stuck.
  • the rounded tooth base advantageously merges tangentially and without kinking into the adjacent tooth back and the adjacent tooth face.
  • the radius in the tooth base of the clothing wire can be greater than one eighth of the pitch.
  • a radius greater than 0.4 mm can be particularly advantageous.
  • a radius larger than a seventh or a sixth of the division is also advantageous.
  • the clothing wire can have a tooth back with two or more straight sections.
  • a straight section that adjoins the tooth base can have a greater angle to the longitudinal direction of the clothing wire than another straight section of the tooth back.
  • the straight section adjoining the tooth base preferably merges tangentially into the tooth base.
  • the straight section of the The back of the tooth of the clothing wire preferably extends up to a maximum of 50% of the tooth depth in the direction of the tip. On the one hand, this ensures that the teeth can have the required spacing in the tooth base.
  • the teeth can still be designed with the required small pitch and yet with a small angle to the longitudinal direction in the tooth face or with an undercut.
  • the clothing wire can have an undercut in the tooth face.
  • the undercut is more inclined to the longitudinal direction than the part of the tooth face adjoining at the bottom. In other words, the undercut has a smaller angle to the longitudinal direction than the adjoining part of the tooth face.
  • the angle of the undercut is preferably between 0 ° and 40 ° to the longitudinal direction.
  • the angle of the undercut can be between 5 ° and 35 ° to the longitudinal direction.
  • FIG. 1 shows a clothing wire (1) according to the prior art.
  • a section of clothing wire is shown which comprises 4 teeth (2).
  • the clothing wire (1) is shown in a view perpendicular to the longitudinal direction (L) and perpendicular to the vertical direction (H).
  • the division (3) and the tooth depth (7) are shown with arrows.
  • the pitch (3) is measured in the longitudinal direction (L), the tooth depth (7) in the height direction (H).
  • the auxiliary lines for the arrow to show the division (3) are applied to two tooth tips (8) of consecutive teeth (2).
  • the arrow to represent the tooth depth (7) is shown between the deepest point of a tooth base (6) and on an auxiliary line, which in turn is applied to a tooth tip (8).
  • the illustrated clothing wire (1) has an undercut (11).
  • the tooth back (5) and the tooth face (4) run straight below the undercut (11). Above the undercut (11) in the direction of the tip, the tooth back (5) and the tooth face (4) have a deviating area.
  • the trim wire according to the invention in Figure 2 corresponds to a large extent to the clothing wire Figure 1 .
  • the clothing wire (1) has a spacing (9) which is greater than a quarter of the pitch (3).
  • the distance (9) is measured from a turning point (10) at the transition from the tooth base (6) to the tooth back (5) to the opposite tooth face (4).
  • Figure 3 a section from Figure 2 shown enlarged.
  • Figure 3 shows two teeth (2) of a clothing wire (1) according to the invention.
  • the foot section is no longer shown in full, but at the bottom of the Figure 3 cut off.
  • the distance (9) starting from the point of inflection (10) is measured at an angle of 90 ° to the tangent at the point of inflection (10).
  • the tooth base (6) runs in the shape of a circular arc and merges tangentially into the tooth back (5).
  • the tooth back (5) runs straight.
  • the angle of the tangent at the turning point (10) at which the circular arc of the tooth base (6) merges tangentially into the adjacent straight line of the tooth back (5), does not change in the entire first straight section of the tooth back (5).
  • the turning point (10) is clearly defined at the point shown in accordance with its definition.
  • the straight area adjoining the tooth base (6) has a larger angle (12) to the longitudinal direction (L) than the angle (13) of a straight area arranged further up.
  • the angle (14) of the tooth face (4) is shown for the sake of completeness.
  • List of reference symbols 1 Trim wire 2 tooth 3 division 4th Tooth face 5 Tooth back 6th Tooth base 7th Tooth depth 8th Tooth tip 9 distance 10
  • Longitudinal direction of the trim wire H Direction of height of the trim wire

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP17197463.7A 2017-10-20 2017-10-20 Garniturdraht Active EP3473754B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP17197463.7A EP3473754B1 (de) 2017-10-20 2017-10-20 Garniturdraht
BR102018014143-0A BR102018014143B1 (pt) 2017-10-20 2018-07-11 Arame de carda
JP2018179205A JP2019077978A (ja) 2017-10-20 2018-09-25 カードワイヤ
KR1020180123674A KR102652089B1 (ko) 2017-10-20 2018-10-17 카드 와이어
US16/165,338 US10988863B2 (en) 2017-10-20 2018-10-19 Card wire
CN201811222115.XA CN109695075B (zh) 2017-10-20 2018-10-19 梳针

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17197463.7A EP3473754B1 (de) 2017-10-20 2017-10-20 Garniturdraht

Publications (2)

Publication Number Publication Date
EP3473754A1 EP3473754A1 (de) 2019-04-24
EP3473754B1 true EP3473754B1 (de) 2021-05-19

Family

ID=60153161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17197463.7A Active EP3473754B1 (de) 2017-10-20 2017-10-20 Garniturdraht

Country Status (5)

Country Link
US (1) US10988863B2 (ko)
EP (1) EP3473754B1 (ko)
JP (1) JP2019077978A (ko)
KR (1) KR102652089B1 (ko)
CN (1) CN109695075B (ko)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES288973Y (es) * 1984-10-11 1987-02-01 Sole Leris Roger Guarnicion rigida para chapones para cardas perfeccionada.
DE19509743A1 (de) * 1995-03-17 1996-09-19 Fritz Stahlecker Garnitur für eine Auflösewalze
US5755012A (en) * 1996-03-05 1998-05-26 Hollingsworth; John D. Metallic clothing for carding segments and flats
AUPP681098A0 (en) 1998-10-30 1998-11-19 Commonwealth Scientific And Industrial Research Organisation Card wire, especially for doffers and workers
EP1318218B1 (de) * 1999-11-10 2005-03-23 Graf + Cie Ag Sägezahndraht
US8745826B2 (en) 2010-05-04 2014-06-10 Nv Bekaert Sa Wire profile for card clothing
CH704510A1 (de) * 2011-02-18 2012-08-31 Graf & Co Ag Ganzstahlgarnitur.
EP2756119B1 (en) * 2011-09-15 2016-03-30 Groz-Beckert KG Card wire with improved tooth shape
EP2808429B1 (de) * 2013-05-27 2017-06-28 Groz-Beckert KG Garniturdraht für eine walze einer kardiermaschine
CN103498215A (zh) * 2013-09-29 2014-01-08 无锡众望四维科技有限公司 粗梳毛机的金属针布
US9663877B2 (en) * 2014-01-23 2017-05-30 Groz-Beckert Kg Card wire
DE102014107079B3 (de) * 2014-04-07 2015-06-18 TRüTZSCHLER GMBH & CO. KG Ganzstahlgarnitur für eine Karde

Also Published As

Publication number Publication date
CN109695075B (zh) 2023-02-17
EP3473754A1 (de) 2019-04-24
US10988863B2 (en) 2021-04-27
KR20190044514A (ko) 2019-04-30
US20190119832A1 (en) 2019-04-25
BR102018014143A2 (pt) 2019-05-07
CN109695075A (zh) 2019-04-30
KR102652089B1 (ko) 2024-03-29
JP2019077978A (ja) 2019-05-23

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