US3808640A - Card clothing arrangement - Google Patents

Card clothing arrangement Download PDF

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Publication number
US3808640A
US3808640A US00147740A US14774071A US3808640A US 3808640 A US3808640 A US 3808640A US 00147740 A US00147740 A US 00147740A US 14774071 A US14774071 A US 14774071A US 3808640 A US3808640 A US 3808640A
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US
United States
Prior art keywords
angle
hook
elements
respect
flats
Prior art date
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Expired - Lifetime
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US00147740A
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English (en)
Inventor
W 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
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Graf und Cie AG
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Publication date
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    • 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

Definitions

  • ABSTRACT A card clothing arrangement, especially the flat clothing of a revolving flat card incorporating a number of [30] Forelgn Apphcailon pnomy Data flats arranged in succession.
  • Each of the flats is pro- June 3, 1970 Switzerland 8323/70 vided hooklike clothing elements are inserted in the base of the support element or elements [52] [1.8- Ci. and each of such hook-like clothing elements p05- sesses an inner ection located at the base region and Field of Search 234, an outer section.
  • the inner base section is inclined at 19/115 C an angle, the so-called penetration angle, and the outer section is inclined at an angle, the so-called References Clted comb angle, with respect to a vertical of the base UNITED STATES PATENTS plane.
  • the invention contemplates providing a multi- 693,817 2/1902 M1115 et a1. 19/113 Plicity of groups 9 l elements, wherein 922,448 5 1909 Bates et a1. 19 114 the Comb angle 1th a group of such h ok-like ele- FOREIGN PATENTS OR APPLICATIONS ments always varies in the same direction of the feed or transport of the material.
  • the present invention relates to a new and improved card, clothing arrangement, especially the clothing of the flats of a revolving flat card incorporating a number of flats which are arranged in succession, each of these flats being provided with hook-like clothing elements inserted in the base of the support element or elements and wherein each hook-like element possesses an inner section at the region of the base thereof and an outer section, and further wherein the inner section is inclined at an angle, the so-called penetration angle, and the outer section is inclined at an angle, the so-called comb angle, with respect to a vertical taken with respect to the base plane.
  • Another and more specific object of the present invention is to provide an improved construction of card clothing for a carding machine which provides for a better carding of the fibrous material being processed, and wherein the construction is highly reliable in operation, not readily subject to breakdown, economical to manufacture, and requires minimum servicing and maintenance activity.
  • the card clothing arrangement of the previously mentioned type is manifested by the features that a multiplicity of groups of such hook-like elements are provided, and wherein the comb angle within a group of hook-like elements always varies in the same direction or sense of the feed direction of the material.
  • the fiber bundle or fiber flocks which are to be treated are thereby subjected to a multiplicity of repeating combing operations which follow one another in succession and with varying combing effect.
  • This alternate action to which the fibrous material is subjected significally increases the loosening, cleaning and arranging in parallel of the fibrous material which may consist of, forinstance, any desired natural staple fibers or synthetic staple fibers, composed of natural or synthetic polymers.
  • the comb angle within a group preferaby decreases in the feed direction of the material, and a group of hook-like elements or hooks forms the clothing of a card flat.
  • fibrous material or fiber bunches are optimumly processed within the confines of the same flat. Fiber bunches orbundles which may have slipped by are always processed in the same manner by the next successive flat.
  • FIG. 1 is a schematic view of a card equipped with the inventive card clothing
  • FIG. 2 is a schematic section of a conventional flat clothing as viewed transverse to the direction of movement or feed of the fiber material which is being treated;
  • FIG. 3 is a section of the conventional flat clothing of FIG. 2 as viewed in the direction of movement of the fibrous material which is being treated;
  • FIGS. 4 to 7 are respective views of flats equipped with different clothing according to the teachings of the present invention and viewed transverse to the direction of movement of the fibrous material undergoing treatment, and wherein in each instance there has only been conveniently illustrated the first and last row of elements of the clothing as seen in such direction of movement;
  • FIG. 8 shows the embodiment of FIG. 4 in greater detail wherein the comb angle of successive hook-like elements of the flat decrease from the front to the back thereby gradually reducing the comb angle in the direction of movement of the material.
  • a smaller pre-tearing or pre-breaking roll 3 which is suitably rotatably driven so as to rotate about its axis in the direction of the arrow s, and to the right of cylinder 1 there is located a withdrawal or take-off roll 4 driven so as to rotate about its axis in the direction of the arrow t.
  • the pre-tearing roll 3 and the take-off roll 4 rotate in a sense which is opposite to the rotational sense of the card cylinder I.
  • each of the flats 5 are equipped with clothing composed of the hook-like elements 7, sometimes merely referred to herein as hooks, which at the operable zone of the cylinder 1 cooperate with the clothing 2 of such cylinder.
  • hooks which at the operable zone of the cylinder 1 cooperate with the clothing 2 of such cylinder.
  • there has been shown at each flat 5 onlythe two outermost hooks 7.
  • a suitable number of further hooks 7 forming a group 7A.
  • the card cylinder 1 receives the fibers which are to be treated, for instance cotton fibers, from the pretearing roll 3 and transports such then in the direction of the arrow r into the region of the flats 5.
  • the peripheral velocity of the card cylinder 1 is greater than the speed of movement of the flats 5.
  • the hooks 7 attempt to hold back the loosened fibrous material, whereas the tips 2a of the teeth 2b of the cylinder clothing 2 of the card cylinder 1 loosens the individual fibers out of the fiber bunch or bundle, entrains such and transmits same to the take-off roll 4.
  • the flats 5 of this invention similar to the conventional flats of the prior art, generally possess a base portion or element 8 formed of fabric layers which, have been adhesively bonded to one another, and in which double hooks 7 formed of steel wire are inserted.
  • the steel wire which can possess any desired cross-section, is inserted in the fabric layers of the base 8 in the form of a U, as best seen by referring to FIG.
  • the base of the U-shaped wires being located in the fabric layers of the base 8 and extending parallel to the lengthwise axis of the associated flat 5.
  • Each leg of the U-shaped wires which protrudes out of the fabric layers of the base 8 forms a hook-like element or book 7. Therefore, at each flat 5 there are arranged a number of rows of these hooks which are in alignment and spaced behind one another.
  • each hook 7 consists of an inner section 9 which is located at the side of the base and an outer section 10. Both sections 9 and 10 are flexed or bent with respect to one another and form an elbow or knee II.
  • each hook 7 is inclined at an angle a, the so-called penetration or needle angle, with respect to a straight line passing through the bottom point of such section 9 and perpendicular to the base portion 8 of the corresponding flat 5, and wherein the inclination of such base-side section 9 is in the direction of flow or movement A of the material.
  • the outer section 10 of each book 7 is inclined at an angle B, the so-called combor bending angle, with respect to a straight line extending through its base or bottom point which is disposed at the elbow or knee 11 and perpendicular to the base portion 8 of such flat 5, the inclination of the outer section 10 being opposite to the direction of flow A of the MATERIAL. material.
  • the penetration angle a as well as the comb angle [3, remains the same for all books. Furthermore, all of the elbows or knees ll of all of the books 7 are located at the same elevation above the plane or surface of the base portion 8.
  • the penetration angle and/or comb angle vary.
  • the height of such elbow with respect to the base portion 8 can vary for the various books.
  • the extreme end of all books are advantageously located at the same height above the base portion 8 and in one plane.
  • FIGS. 4 to 8 inclusive there will be hereinafter described different possible embodiments of clothing as designed in accordance with the inventive concepts.
  • the same reference characters as previously employed will be used for the same conponents or portions.
  • Concerning the penetration angle a and the combor bending angle B the definitions already given above are here applicable.
  • the flow or feed of the material is vin the direction of the arrow A.
  • FIGS. 4 to 8 in each case only the first and last hook row of a flat as seen in the direction of flow of the material have been shown. Of course, between the two hook rows which have been indicated there are located a multiplicity of further hook rows.
  • the various flats 5 illustrated in the respective embodiments of FIGS. 4 to 8 likewise embody a base portion or base member 8 formed of adhesively bonded fabric layers into which there are inserted or embedded, in the above-described manner, the double-hooks 7 formed of steel wire.
  • the first hooks viewed in the direction of material flow have been designated by reference characer 7' and the last hooks viewed in the direction of material flow have been designated by reference character 7, and wherein it is here mentioned that as above the direction of material flow or feed direction of the material has been indicated by reference character A.
  • the penetration angle a of all books 7, 7' of the flat 5 remain constant, and the base-side section 9 of all such books are inclined by the same amount in the direction of flow A of the material.
  • the comb angle varies in the direction of flow A of the material between B and B, and thus, in the flow direction of the material either becomes continuously or stepwise smaller, so that the outer sections 10 of the book 7' are more markedly inclined towards the material flow directionthan the sections 10 of the hook 7.
  • the penetration angle varies in the direction of material flow A between a and a and, therefore, becomes either continuously or stepwise larger in the direction of material flow so that the base-side sections 9' of the hook 7 are inclined less pronouncedly in the direction of material flow than the base-side sections 9 of the hook 7. Since the angle between the inner sections 9, 9 and the outer sections 10, 10' remains constant.
  • the comb angle varies between B' and B in such a manner that the outer sections 10 of all hooks of a flat 5 are inclined by a gradually smaller amount towards the direction of material flow
  • the embodiment of FIG. 6 is a combination of the angle variations discussed above in conjunction with FIGS. 4 and 5, so that in this case the penetration angle as well as the comb angle varies in the manner described above for the embodiments of FIGS. 4 and 5 by virtue of the measures undertaken therewith.
  • the penetration angle a is maintained constant and the comb angle B is varied in the manner of the embodiment discussed in conjunction with FIG. 4. Additionally, the height of the knee 11 with respect to the base portion or base member 8, which knee in each case is formed by the flexing of both sections 9 and 10 of each such hook with regard to one another, becomes either continuously or stepwise smaller in the direction of flow A of the material.
  • All flats'of a card are preferably of the same construction so that an alternate action is exerted upon the material which is being processed and which is extremely favorable for the loosening, cleaningand 'parallelization capability of the carding machine.
  • the penetration angle can vary in a range of approximately 5 to 30 and the comb angle in a range of approximately 0 to 35 for the various embodiments herein disclosed.
  • a card clothing arrangement for treating material moving in a given direction, especially the clothing of a flat of a revolving flat card, which includes a number of flats arranged in succession, each flat embodying a base portion and a multiplicity of hook-like clothing elements inserted at said base portion, each hook-like element incorporating an inner section disposed at the side of the base portion and an outer section, said outer section being inclined opposite the direction of movement of the material and at an angle with respect to said inner section thereby forming a knee and defining a.comb angle with respect to a perpendicular taken with respect to a plane containing the base portion, the improvement in accordance with which the comb angle of successive hook-like elements from the front to the back of each of such flats decreases thereby gradually reducing the comb angle in each of such flats in the direction of movement of the material.
  • hook-like elements are formed as substantially U-shaped flexed double hooks having protruding legs defining the individual hook-like elements and further having an interconnecting web, said interconnecting web being embedded in the associated base portion.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US00147740A 1970-06-03 1971-05-28 Card clothing arrangement Expired - Lifetime US3808640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH832370A CH521454A (de) 1970-06-03 1970-06-03 Kardengarnitur

Publications (1)

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US3808640A true US3808640A (en) 1974-05-07

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ID=4338565

Family Applications (1)

Application Number Title Priority Date Filing Date
US00147740A Expired - Lifetime US3808640A (en) 1970-06-03 1971-05-28 Card clothing arrangement

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US (1) US3808640A (sv)
BE (1) BE767918A (sv)
CH (1) CH521454A (sv)
DE (1) DE2127228A1 (sv)
FR (1) FR2095783A5 (sv)
GB (1) GB1350925A (sv)
NL (1) NL7107562A (sv)
SE (1) SE388642B (sv)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142741A (en) * 1989-12-04 1992-09-01 Maschinenfabrik Rieter Ag Carding elements with variably inclined teeth for working textile fibers and method
US5862573A (en) * 1990-09-17 1999-01-26 Trutzschler GmbH & Co, KG Carding machine having a fiber introducing apparatus
US6101680A (en) * 1997-09-12 2000-08-15 Maschinenfabrik Rieter Ag Card flat for a textile card machine
US6219885B1 (en) 1997-02-24 2001-04-24 Maschinenfabrik Rieter Ag High performance card
US6687958B2 (en) 2000-02-17 2004-02-10 Hollingsworth Gmbh Carding machine
US20090288273A1 (en) * 2008-05-20 2009-11-26 Graf & Cie Ag Carding-Flat Bar for a Card
US20110203086A1 (en) * 2007-11-28 2011-08-25 Maschinenfabrik Rieter Ag Card Flat Removal Device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125035A1 (de) * 1991-07-29 1993-02-04 Truetzschler & Co Vorrichtung an einer karde fuer textilfasern, z. b. baumwolle, chemiefasern u. dgl.
DE10042205B4 (de) † 2000-08-28 2004-10-21 Hollingsworth Gmbh Vorrichtung wie Karde oder Krempel für die Faserverarbeitung
CN100372977C (zh) * 2005-03-22 2008-03-05 东华大学 精细化黄麻绒纤维专用盖板针布
DE102010045308A1 (de) * 2010-09-14 2012-03-15 Graf + Cie Ag Kardendeckelgarnitur mit progressivem/regressivem Bearbeitungswinkelverlauf

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29143C (de) * W. C. KALTSCHMIDT in Neumünster Kratzenbeschlag für Volants
GB189811385A (en) * 1898-05-19 1899-04-01 Ernest Hannan Gillett Improvements relating to Carding Engine Flats.
US693817A (en) * 1901-01-12 1902-02-18 Saco & Pettee Machine Shops Card-clothing.
US922448A (en) * 1907-09-30 1909-05-25 Bates & Robinson Machine Company Card-clothing.
GB288076A (en) * 1927-08-03 1928-04-05 Franklin Seelemann Improvements in fancy roller card clothing
DE467015C (de) * 1926-10-29 1929-02-18 Ver Kratzenfabriken G M B H Volantkratzenbeschlag

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29143C (de) * W. C. KALTSCHMIDT in Neumünster Kratzenbeschlag für Volants
GB189811385A (en) * 1898-05-19 1899-04-01 Ernest Hannan Gillett Improvements relating to Carding Engine Flats.
US693817A (en) * 1901-01-12 1902-02-18 Saco & Pettee Machine Shops Card-clothing.
US922448A (en) * 1907-09-30 1909-05-25 Bates & Robinson Machine Company Card-clothing.
DE467015C (de) * 1926-10-29 1929-02-18 Ver Kratzenfabriken G M B H Volantkratzenbeschlag
GB288076A (en) * 1927-08-03 1928-04-05 Franklin Seelemann Improvements in fancy roller card clothing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142741A (en) * 1989-12-04 1992-09-01 Maschinenfabrik Rieter Ag Carding elements with variably inclined teeth for working textile fibers and method
US5862573A (en) * 1990-09-17 1999-01-26 Trutzschler GmbH & Co, KG Carding machine having a fiber introducing apparatus
US6219885B1 (en) 1997-02-24 2001-04-24 Maschinenfabrik Rieter Ag High performance card
US6101680A (en) * 1997-09-12 2000-08-15 Maschinenfabrik Rieter Ag Card flat for a textile card machine
US6687958B2 (en) 2000-02-17 2004-02-10 Hollingsworth Gmbh Carding machine
US20110203086A1 (en) * 2007-11-28 2011-08-25 Maschinenfabrik Rieter Ag Card Flat Removal Device
US8516670B2 (en) * 2007-11-28 2013-08-27 Maschinenfabrik Rieter Ag Card flat removal device
US20090288273A1 (en) * 2008-05-20 2009-11-26 Graf & Cie Ag Carding-Flat Bar for a Card

Also Published As

Publication number Publication date
FR2095783A5 (sv) 1972-02-11
BE767918A (fr) 1971-11-03
NL7107562A (sv) 1971-12-07
GB1350925A (en) 1974-04-24
SE388642B (sv) 1976-10-11
DE2127228A1 (de) 1971-12-30
CH521454A (de) 1972-04-15

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