US20070204438A1 - Combing device for a circular comb and method for the manufacture of the combing device - Google Patents

Combing device for a circular comb and method for the manufacture of the combing device Download PDF

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Publication number
US20070204438A1
US20070204438A1 US11/680,279 US68027907A US2007204438A1 US 20070204438 A1 US20070204438 A1 US 20070204438A1 US 68027907 A US68027907 A US 68027907A US 2007204438 A1 US2007204438 A1 US 2007204438A1
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US
United States
Prior art keywords
combing
comb
comb teeth
extending vertically
combing device
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.)
Abandoned
Application number
US11/680,279
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English (en)
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 Ralph A
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 Ralph A filed Critical Graf Ralph A
Publication of US20070204438A1 publication Critical patent/US20070204438A1/en
Assigned to GRAF + CIE AG reassignment GRAF + CIE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRAF, RALPH A.
Abandoned 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements

Definitions

  • Embodiments of the invention relate to a combing device for a combing machine, having at least one circular comb and at least one top comb and having a number of comb teeth serving to engage in a fiber fleece and arranged side by side in a direction that is approximately vertical to the direction of combing.
  • Combing machines often serve to refine yarns manufactured from textile fibers. In the manufacture of yarns, it is typically arranged between the carding and the stretching station.
  • the main tasks of the combing machine consist of the elimination of short fibers from the card slivers produced by the carding station, i.e. the improvement of the stack of the raw fiber material as well as the improvement of the parallelization of the individual fibers of the fiber fleece supplied by the carding station in the form of the card sliver.
  • further cleaning of the fiber fleece is achieved in the combing machine by the elimination of neps and seed particles.
  • a fiber tuft of the fiber fleece which is fed from a supply cylinder and held by means of a gripper, is combed through by a circular comb in the combing machine, which rotates about a fixed axis; said fiber tuft is then soldered with an already combed combing fleece and is then torn off of the fiber fleece yet to be combed due to the engagement of a top comb in the tuft which has been combed by the circular comb and the simultaneous removal of the combing fleece from the supply cylinder.
  • the desired improvement of the parallelism of the individual fibers of the fiber fleece as well as the improvement of the stack by means of elimination of short fibers is effected by the interaction of the circular comb and the top comb.
  • the top comb of conventional combing machines is typically composed of a support element in the form of a sheet metal strip and comb teeth soldered thereto in the form of flat needles.
  • 195 31 605 proposes a further development of conventional top combs, characterized by the comb teeth of the top comb as well as the comb teeth of the circular comb having the form of saw tooth wire sections with, respectively, at least one saw tooth exhibiting tooth flanks extending essentially parallel to the direction of combing and a tooth face extending vertically thereto.
  • the saw tooth wire sections used for the manufacture of the top comb as well as the saw tooth wire sections used for the manufacture of the circular tooth may consist, respectively, of a base and a reed joined thereto and exhibiting the at least one saw tooth, with the dimensions of the base being greater in a direction extending essentially vertically to the direction of combing than the dimensions of the reed in this direction, so as to provide the combing spaces enabling the passage of the fibers through the respective comb elements during the combing process.
  • a wire-shaped basic raw material is first subjected to a cold rolling process in order to create a wire profile forming the base area and the reed area of the saw tooth wire sections.
  • the saw teeth are extracted from the profile wire using a punching process. From the saw tooth wire thus obtained, saw tooth wire sections are cut off to such a length that is required for the manufacture of a top comb or a circular comb.
  • the saw tooth wire sections are then combined into bundles and attached on a suitable support element.
  • the saw teeth can be subjected to a hardening process, such as, e.g., a laser or flame hardening process.
  • FIG. 1 illustrates a method for the manufacture of comb elements, which is suitable for the manufacture of top combs, in accordance with various embodiments of the invention.
  • FIG. 2 illustrates a flowchart view of operations for manufacturing comb elements, in accordance with various embodiments of the invention.
  • Illustrative embodiments of the present invention include, but are not limited to a combing device for a combing machine exhibiting at least a circular comb and at least a top comb, with a number of comb teeth serving to engage in a fiber fleece and arranged side by side in a direction approximately vertical to the direction of combing, with the combing device exhibiting at least one comb element with at least two, three, or more comb teeth made in one piece and arranged side by side in the direction extending vertically to the direction of combing.
  • the phrase “in one embodiment” is used repeatedly. The phrase generally does not refer to the same embodiment; however, it may.
  • the terms “comprising,” “having,” and “including” are synonymous, unless the context dictates otherwise.
  • the phrase “A/B” means “A or B”.
  • the phrase “A and/or B” means “(A), (B), or (A and B)”.
  • the phrase “at least one of A, B and C” means “(A), (B), (C), (A and B), (A and C), (B and C) or (A, B and C)”.
  • the phrase “(A) B” means “(B) or (A B)”, that is, A is optional.
  • the combing device may allow the production of a high quality carded and combed (top) sliver or a high quality combing machine ribbon, using, in one embodiment, high machine running times and high operating speeds, as well as providing a method for the manufacture of such combing devices.
  • the combing device may exhibit at least one comb element with at least two, three, or more comb teeth made in one piece and arranged side by side in the direction extending vertically to the direction of combing.
  • Embodiments of the invention are based on the insight that problems encountered in the manufacture of conventional combing devices for combing machines are primarily due to the fact that their comb teeth are formed by means of a multitude of individual parts to be arranged side by side, such as, e.g., saw tooth wire sections, with the additional requirement that these individual parts have to be manufactured beforehand using a required manufacturing process (cold rolling, punching, hardening).
  • At least one of the comb teeth has a saw tooth-shaped design with two tooth flanks extending parallel to the direction of combing and a tooth face connecting the tooth flanks and extending approximately vertically thereto, with the transitions between the tooth flanks and tooth face possibly being rounded.
  • the fixing of the comb teeth may be achieved via special fastening elements to which the comb teeth have to be attached.
  • the fastening area designed for the attachment of the comb element to the combing machine it is also possible for the fastening area designed for the attachment of the comb element to the combing machine to be made in one piece with the comb teeth.
  • combing devices in accordance with embodiments of the invention in the form of circular combs for a combing machine, but also when using combing devices in accordance with embodiments of the invention in the form of top combs for a combing machine, it may be advantageous, in order to obtain an especially desirable combing effect, for the comb element to exhibit at least two, three, or more comb teeth arranged in series.
  • the tips of the comb teeth arranged side by side in the direction extending vertically to the direction of combing may be expeditiously arranged approximately on a straight line extending vertically to the direction of combing.
  • the tips of the comb teeth arranged in series in the direction of combing may be arranged, when using combing devices in accordance with embodiments of the invention in the form of circular combs, approximately on a circular arc, the center of which may fall on the fixed axis rotated about by the circular comb.
  • the comb elements of combing devices may be made at least in part from high-alloyed steel, such as stainless chrome nickel steel, the cold forming properties of which would no longer be sufficient for the manufacture of profile wires.
  • a comb element may be characterized in that it exhibits at least two, three, or more (in one embodiment, 20, 30 or more) comb teeth made in one piece and arranged side by side in the direction extending vertically to the direction of combing.
  • a top comb obtained by using respective comb elements, may be characterized in that it may exhibit two, three, or more comb teeth made in one piece, the tooth tips of which may be arranged on a straight line extending approximately vertically to the direction of combing.
  • a circular comb manufactured by using comb elements in accordance with embodiments of the invention may comprise both two, three, or more comb teeth made in one piece and arranged side by side in a direction extending vertically to the direction of combing, as well as two, three, or more comb teeth made in one piece and arranged in series in the direction of combing. It is possible, both for the manufacture of top combs and the manufacture of circular combs, in accordance with embodiments of the invention, for two, three, or more comb elements to be arranged side by side in a direction extending vertically to the direction of combing. It may also be possible—for, e.g., the manufacture of circular combs in accordance with embodiments of the invention—to arrange two, three, or more comb elements in series in the direction of combing.
  • a method, in accordance with various embodiments of the invention, for the manufacture of a comb element for a combing device may include a number of operations.
  • a first operation starting with, for example, an approximately cuboid raw material block made from high-alloyed steel, such as, e.g., chrome nickel steel, the slots separating the individual comb teeth from each other in the direction extending vertically to the direction of combing may be formed in the raw material.
  • the form of the comb teeth may be removed from the raw material block in an aspect that is vertical to the direction of combing, while a connecting area, connecting the comb teeth with each other in the direction extending vertically to the direction of combing, as well as the fastening area of the raw material block, serving to fasten the comb element to the combing machine, are being preserved.
  • an efficient manufacture of comb elements and combing devices in accordance with embodiments of the invention it may be advantageous to form two, three, or more slots simultaneously in the above-mentioned first operation.
  • An efficient manufacture of comb elements or combing devices in accordance with embodiments of the invention may be ensured, while ensuring the required high manufacturing precision, if the first and/or second operation is carried out by spark erosion machining or spark erosion depth machining, with it being possible to use a multi-machining head for the simultaneous formation of two, three, or more slots in the raw material block and/or the simultaneous removal of two, three, or more saw teeth arranged in series in the direction of combing.
  • FIG. 1 schematically illustrates a method for the manufacture of comb elements, which are suitable for the manufacture of top combs, in accordance with various embodiments of the invention.
  • a raw material block made from stainless high-alloyed steel such as, e.g., chrome nickel steel
  • the width b of this raw material block may be up to 300 mm and the height h of the raw material may be between 5 to 15 cm, inclusive, such as a height h of 10 cm.
  • the depth t of the raw material block may be between 1 to 10 mm, inclusive, such as a depth t of 3 to 5 mm.
  • the slots 12 may be removed from the raw material block 10 in a first operation via spark erosion machining using a multi machining head 20 , with said slots 12 separating the comb teeth from each other in a direction P extending vertically to the direction of combing.
  • three slots 12 may be simultaneously created by means of the multi machining head 20 .
  • four or more slots 12 or 2 or fewer slots 12 may be produced simultaneously.
  • profiles 50 may be simultaneously removed in an aspect directed vertically to the direction of combing, by means of machining heads 30 and 40 , from the raw material block 10 , from two opposite directions respectively extending vertically to the direction of combing. These profiles may exhibit, underneath the slots 12 , a fastening area 54 connecting the combing teeth with each other, as well as saw teeth shaped combing teeth 52 .
  • spark erosion processes may be used.
  • such processes may allow for the manufacture of comb teeth 52 of any desired form, specifically any face form and teeth or tooth flanks of any profile.
  • the flanks of the tooth-shaped teeth 52 may converge, for example, in sections, symmetrically in the direction of the tooth tips with respect to a plane extending vertically to the direction P.
  • Embodiments of the invention are not restricted to the embodiments explained by reference to the drawing, however. Instead, the manufacture of circular comb sets by other processes in accordance with the embodiments of invention is also contemplated.
  • Multi machining heads may also be used in the manufacture of the tooth profiles in the second operation as well. Furthermore, the manufacture of comb teeth of any tooth shape is contemplated.
  • FIG. 2 illustrates a flowchart view of operations for manufacturing comb elements, in accordance with various embodiments of the invention.
  • the operations may include forming, from a cuboid-shaped raw material block, slots in the raw material block, with the slots separating individual comb teeth from each other in a direction extending vertically to a direction of combing, block 202 .
  • two, three, or more slots may be formed simultaneously.
  • the comb teeth may be removed from the raw material block in an aspect vertical to the direction of combing, with a connecting area connecting the comb teeth with each other in the direction extending vertically to the direction of combing, block 204 .
  • the removing may further comprise processing, from two opposite directions, the raw material block, respectively extending vertically to the direction of combing. Further, in various embodiments, the forming and/or the removing may be performed using spark erosion machining or spark erosion depth machining. Lastly, the operations may include preserving a fastening area of the raw material block, block 206 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US11/680,279 2006-03-02 2007-02-28 Combing device for a circular comb and method for the manufacture of the combing device Abandoned US20070204438A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006009732.7 2006-03-02
DE102006009732A DE102006009732A1 (de) 2006-03-02 2006-03-02 Kämmeinrichtung für einen Rundkamm und Vrfahren zur Herstellung der Kämmeinrichtung

Publications (1)

Publication Number Publication Date
US20070204438A1 true US20070204438A1 (en) 2007-09-06

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US11/680,279 Abandoned US20070204438A1 (en) 2006-03-02 2007-02-28 Combing device for a circular comb and method for the manufacture of the combing device

Country Status (10)

Country Link
US (1) US20070204438A1 (de)
EP (1) EP1829993B1 (de)
JP (1) JP2007231504A (de)
KR (1) KR20070090829A (de)
CN (1) CN101046012B (de)
AT (1) ATE490357T1 (de)
BR (1) BRPI0704255A2 (de)
CA (1) CA2577568A1 (de)
DE (2) DE102006009732A1 (de)
RU (1) RU2007107757A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080040893A1 (en) * 2006-06-23 2008-02-21 Graf + Cie Ag Combing means for a comb of a combing machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700629A2 (de) 2009-03-18 2010-09-30 Rieter Ag Maschf Fixkamm für eine Kämmmaschine.
CH700628B1 (de) 2009-03-18 2013-07-31 Rieter Ag Maschf Verfahren zur Herstellung eines einstückigen Garniturelements einer Kämmgarnitur einer Kämmmaschine.
DE102009039954A1 (de) * 2009-08-28 2011-03-03 Graf + Cie Ag Zahngarnitur für einem Kamm einer Kämm-Maschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409565A (en) * 1943-07-24 1946-10-15 Holdsworth Willie Gill bar or faller for gill-drawing machines
US3833968A (en) * 1971-03-09 1974-09-10 Toyoda Chuo Kenkyusho Kk Metallic card clothing
US5428949A (en) * 1992-11-28 1995-07-04 Hans Stahlecker Fitting for an opening roller of an open-end spinning device
US5452627A (en) * 1993-04-14 1995-09-26 Graf + Cie Ag Kratzen- Und Maschinenfabrik Making a composite profiled wire
US6604260B1 (en) * 1999-11-26 2003-08-12 Staedtler & Uhl Card clothing for a textile machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1264306A (de) * 1968-05-28 1972-02-23
FR2097701A5 (de) * 1970-07-20 1972-03-03 Nakagawa Seisakusho Co
JPS5921676U (ja) * 1982-08-02 1984-02-09 金井　宏之 コ−マ用トツプコ−ム
DE8430562U1 (de) * 1984-10-18 1985-02-21 Staedtler & Uhl, 8540 Schwabach Saegezahn-stanzteil als garnitur fuer ein kaemmsegment einer kammwalze fuer textilmaschinen
JP3303197B2 (ja) * 1993-10-25 2002-07-15 日東商事株式会社 コーマ用シリンダーコーム
DE19531605C2 (de) * 1995-08-28 2001-07-19 Graf & Co Ag Fixkamm für eine Kämmaschine
DE50306267D1 (de) * 2003-10-21 2007-02-22 Staedtler & Uhl Kg Garnitur an einem Fixkamm einer textilen Kämm-Maschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409565A (en) * 1943-07-24 1946-10-15 Holdsworth Willie Gill bar or faller for gill-drawing machines
US3833968A (en) * 1971-03-09 1974-09-10 Toyoda Chuo Kenkyusho Kk Metallic card clothing
US5428949A (en) * 1992-11-28 1995-07-04 Hans Stahlecker Fitting for an opening roller of an open-end spinning device
US5452627A (en) * 1993-04-14 1995-09-26 Graf + Cie Ag Kratzen- Und Maschinenfabrik Making a composite profiled wire
US6604260B1 (en) * 1999-11-26 2003-08-12 Staedtler & Uhl Card clothing for a textile machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080040893A1 (en) * 2006-06-23 2008-02-21 Graf + Cie Ag Combing means for a comb of a combing machine

Also Published As

Publication number Publication date
RU2007107757A (ru) 2008-09-10
CN101046012A (zh) 2007-10-03
JP2007231504A (ja) 2007-09-13
CN101046012B (zh) 2011-12-28
BRPI0704255A2 (pt) 2009-01-06
EP1829993A1 (de) 2007-09-05
ATE490357T1 (de) 2010-12-15
EP1829993B1 (de) 2010-12-01
KR20070090829A (ko) 2007-09-06
DE502007005812D1 (de) 2011-01-13
CA2577568A1 (en) 2007-09-02
DE102006009732A1 (de) 2007-09-06

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AS Assignment

Owner name: GRAF + CIE AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GRAF, RALPH A.;REEL/FRAME:021677/0662

Effective date: 20080417

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE