EP0452626A1 - Fixkammblatt für eine Kämmaschine - Google Patents

Fixkammblatt für eine Kämmaschine Download PDF

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Publication number
EP0452626A1
EP0452626A1 EP91102148A EP91102148A EP0452626A1 EP 0452626 A1 EP0452626 A1 EP 0452626A1 EP 91102148 A EP91102148 A EP 91102148A EP 91102148 A EP91102148 A EP 91102148A EP 0452626 A1 EP0452626 A1 EP 0452626A1
Authority
EP
European Patent Office
Prior art keywords
comb
guide element
fiber guide
plate
needles
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.)
Withdrawn
Application number
EP91102148A
Other languages
German (de)
English (en)
French (fr)
Inventor
Heinz Clement
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.)
Maschinenfabrik Rieter AG
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
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0452626A1 publication Critical patent/EP0452626A1/de
Withdrawn legal-status Critical Current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
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/22—Arrangements for removing, or disposing of, noil or waste
    • 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

  • the invention relates to a fixed comb blade for a combing machine, with comb needles, which are attached to a plate and project cantilevered from an edge of the plate.
  • a fixed comb with such a fixed comb blade is usually arranged in a combing machine directly in front of a pair of tear-off cylinders.
  • the fixed comb serves to comb out the rear end of a fiber beard carried by a pair of pliers, the front part of which has previously been combed out by a rotating circular comb, while the fiber beard is torn off by the pair of tear-off cylinders and pulled through the fixed comb.
  • Contamination and nits are largely removed from the rear end of the fiber beard. However, the removal of contaminants and nits is never completely complete.
  • the object of the invention is to design the fixed comb blade specified at the outset in such a way that more complete removal of impurities and in particular nits can be achieved with it than with the known fixed comb blades.
  • the fixed comb sheet according to the invention is characterized in that in a section of the unsupported length of the comb needles adjacent to the edge of the plate, the gaps between the comb needles are covered by a fiber guide element which can be elastically compressed perpendicular to the plate, by at least a part of the fiber guide element, which forms the surface of the fiber guide element directed away from the said edge of the plate, consists of rubber-elastic material.
  • the fixed comb sheet according to the invention is arranged in the combing machine in such a way that the fibers of the fleece running towards the fixed comb sheet are slightly deflected on the fiber guide element and somewhat braked be and thereby the fleece is compressed. In this way, as tests have shown, a more complete separation and separation of impurities and in particular nits is achieved.
  • the braking effect exerted by the fiber guiding element on the fibers must not be too strong, the surface of the fiber guiding element facing away from the edge of the plate with which the fibers come into contact should not have any edges that could lead to a compression of the fibers. Rather, the surface mentioned is preferably cylindrically rounded with a radius of curvature of at least 2 mm.
  • the fiber guide element preferably contains a cavity, that is, for example, is approximately tubular.
  • An additional advantage of the fixed comb blade according to the invention is that fewer fibers get caught in it because the bottom of the gaps between the comb needles is covered.
  • the fixed comb blade it can nevertheless occur that impurities and short fibers get caught in a gap formed between the comb needles and the fiber guide element.
  • air openings can be present in a part of the fixed comb blade, which emanate from a cavity and are directed against a central region of the unsupported length of the comb needles. Air blows can then be blown onto the comb needles through these air openings.
  • Fig. 1 shows a combing head schematically a round comb roller 1, a pair of pliers 2, a fixed comb with a bar 3 to which a plate 4 of a fixed comb blade is attached, and a pair of tear-off cylinders 5.
  • the pliers 2 has a pair of pliers frame 6, which is a pliers plate 7 carries and which is articulated at its front end to front supports 8 pivotable about the axis of the circular comb roller 1 and at its rear end to tong pivot arms 9.
  • Upper jaw arms 10 are pivotally connected to lower jaw frame 6 about an axis 11.
  • the arms 10 carry an upper tong plate 12.
  • a feed cylinder 13 is mounted in the tongs frame 6 and is rotated intermittently during operation in order to convey the cotton to be combed (not shown) to the front edge of the tongs plate 7.
  • the pliers 2 are moved back and forth between their front end position and a rear end position. In the rear end position, the pliers 2 are closed, between the lower pliers plate 7 and the upper pliers plate 12 a fiber beard is clamped by the cotton wool, which is combed out by a circular comb segment (not shown) arranged on the rotating circular comb roller 1.
  • the pliers 2 are then moved into their front end position and opened, the front end of the fiber beard is on the lower Tear-off cylinder 5 is combined with the end of the previously formed comb-pulling fleece, and the fiber beard is torn off the wadding by rotation of the tear-off cylinder 5 and pulled through between the needles of the fixed comb sheet.
  • the fixed comb sheet is shown in Fig. 2 on a larger scale, it consists of the plate 4 and of comb needles 14, which are attached to the plate 4 and at the lower edge 4.1 of the plate 4 project from it downwards.
  • the gaps between the comb needles are covered on a rubber-elastic material by a fiber guide element 15 fastened to the plate 4.
  • the fiber guide element 15 covers, approximately perpendicular to the cantilevered sections of the comb needles 14, for example 20 to 80%, preferably 50 to 65%, the cantilevered length of the comb needles 14. This cantilevered length can be, for example, about 6 mm, and the fiber guide element 15 can then cover about 3 to 4 mm.
  • the fibers of the fleece which comes from the cotton platen plate 7 coming from the cotton tongs plate 7 and torn off through the gaps between the comb needles 14, are pressed downward and thereby deflected, as with dash-dotted lines F indicated.
  • the fleece is thus slightly compressed, resulting in a more complete separation of nits and impurities from the fleece running through the gaps between the comb needles 14.
  • the risk is reduced that fibers could get caught at the bottom of the gaps between the comb needles 14.
  • the lower surface of the fiber guide element 15 facing away from the edge 4.1 of the plate 4, with which the through the gaps between the comb needles 14 running fleece comes into contact is rounded (not necessarily circular-cylindrical), the radius of curvature of this lower surface being at least 1.5 mm, preferably at least 2 mm everywhere.
  • the fiber guide element 15 expediently contains a cavity 16.
  • the cavity 16 is enclosed between the fiber guide element 15 and the plate 4.
  • the fiber guide element can of course also have other shapes than that shown in FIG. 2. Some possible other shapes are shown in Figs. 3 to 8.
  • an essentially tubular element 25 made of rubber-elastic material is attached to the plate 4, which element contains a cavity 26 and is closed around it.
  • a wear strip 27 is attached, with which the front edge of the upper pliers plate comes into contact when the pliers are closed and opened, whereby the element 25 is elastically compressed.
  • the fiber guide element consists of Element 25 and the wear strip 27. This can be made of plastic or metal, for example.
  • FIG. 4 shows a fiber guide element 35 with a cavity 36, which is approximately B-shaped in cross section.
  • FIG. 5 shows a solid fiber guiding element 45 without a cavity, which preferably consists of a particularly soft rubber-elastic material.
  • a fiber guiding element of which a part 55, which forms the surface of the fiber guiding element directed away from the edge 4.1 of the plate 4 and coming into contact with the fibers, is made of rubber-elastic material.
  • the two edges of the rubber-elastic part 55 are each attached to a side strip 57 or 58 made of plastic or metal.
  • the two side strips 57 and 58 fastened to the plate 4 are connected to one another to a sufficient extent in a flexible and / or articulated manner so that this fiber guiding element can also elastically dodge the front edge of the top pliers plate.
  • the side strips 57 and 58 together with the part 55 enclose a cavity 56.
  • Fig. 7 shows a fiber guiding element 65 which is attached with its upper edge to the plate 4, while its lower edge extends through the gaps between the comb needles 14 and on the comb needles, e.g. by vulcanization.
  • This fiber guide element 65 also contains a cavity 66 which is enclosed between the fiber guide element 65 and the plate 4.
  • a similar fiber guide element 75 with a cavity 76 is also shown in FIG. 8.
  • the upper edge of the fiber guide element 75 is fastened to the plate 4, the lower edge to the comb needles 14.
  • the fiber guide elements cover, approximately perpendicular to the cantilevered sections of the comb needle 14, usually 20 to 80%, preferably 50 to 65% of the cantilevered length of the comb needles 14, and their lower surface with which the fleece running through the gaps between the comb needles 14 comes into contact, are preferably free of edges and have a radius of curvature of at least 1.5 mm everywhere. At least the part of the fiber guiding elements forming this lower surface consists of rubber-elastic material.
  • the deepest point of the lower surface of the fiber guide elements should be a distance from the comb needles to have.
  • the curved lower surface of the fiber guide elements then meets at an acute angle on the side of the comb needles 14 facing the lowest point mentioned, between the comb needles and the fiber guide elements there is a gap which allows short fibers to be removed from the fleece which is combed, favors and facilitates the elastic deformation of the fiber guide elements.
  • the fiber guide elements 15, 45 and 65 extend through the gaps between the comb needles 14, the fiber guide elements 25, 27 and 35 or 55, 57, 58 and 75 respectively 3, 4, 6 and 8 substantially entirely on one side of the comb needles 14th
  • Contaminants and short fibers can get caught in the gap between this side of the comb needles 14 and the fiber guide elements.
  • air openings can be present in part of the fixed comb comb be emanating from a cavity and directed against said gap or against a central region of the unsupported length of comb needles 14.
  • the rubber-elastic element 25 in FIG. 3 contains a series of air openings 29 which extend from the cavity 26.
  • the rubber-elastic element 35 in FIG. 4 has air openings 39 which extend from the cavity 36. 5
  • air openings 49 start from a cavity 41 in a separate tube 42 fastened to the plate 4.
  • air openings 59 which emanate from the cavity 56, are formed in the side strip 58.
  • air openings 69 which emanate from the cavity 66, are formed by the gaps between the comb needles 14 over the lower edge of the fiber guide element 65 and by a gap between this lower edge and a flow deflection element 62 fastened to the plate 4.
  • the air openings 79 which emanate from the cavity 76, are channels between the plate 4 and a strip 72 fastened thereon, on which in turn the comb needles 14 are fastened.
  • the two ends of the cavities 26 or 36 or 56 or 66 or 76 can be closed in a simple manner in the fiber guide elements (elongated perpendicular to the plane of the drawing) . If the front edge of the upper pliers plate then compresses the fiber guide element when closing and opening the pliers, air is pressed out of the cavity in the fiber guide element, that is to say an air blast is in each case through the air openings 29 or 39 or 59 or 69 or 79 blown onto the comb needles 14. Afterwards, the elastic fiber guiding elements absorb air again through the air openings.
  • this type of air blast generation depends on the setting of the front end position of the pliers or on the setting of the size of the tear-off distance.
  • FIG. 5 Another possibility, also for the embodiment according to FIG. 5, is to connect an air line which can be subjected to air blasts to at least one end of the cavity 26 or 36 or 41 or 56 or 66 or 76.
  • a line can then be fed from any suitable source with compressed air blasts which then pass through the air openings 29 or 39 or 49 or 59 or 69 or 79 at a suitable point in time (or several points in time) during each round trip Movement of the pliers - preferably but not during tearing - be blown onto the comb needles 14.
  • a source movable with the pliers is preferably used if the pliers also carry the fixed comb blade. As an example of this, FIG.
  • FIG. 1 shows a bellows 17 carried on the lower jaw frame 6, which in the rear end position of the tong 2 interacts with a frame-fixed element (not shown) of the combing machine and is pressed together by the combing machine.
  • the bellows 17 then gives an air blast into a schematically illustrated line 18 which leads to the cavity of one of the fiber guide elements described.
  • a check valve 19 can be arranged in the air line 18, in which case a second line 20 with a second check valve 21 is connected to the bellows 17 and connects the interior thereof with the surroundings.
  • the second line 20 and the check valves 19 and 21 could also be omitted; in this case the bellows 17 would soak up air again via the line 18 and the cavity 26 or 36 or 41 or 56 or 66 or 76 through the air openings therein.
  • a piston pump actuated by an electromagnet could also take place (not shown).
  • the generation of air blasts at the times when the pliers 2 are in the region of their rear end position is advantageous because the pliers are closed at these times, that is to say the fiber guide element is not deformed by the edge of the upper pliers plate 12. If the fiber guide element is deformed, it could, under certain circumstances, clamp certain stuck short fibers against the comb needles 14 and thus make it difficult to remove these short fibers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP91102148A 1990-02-26 1991-02-15 Fixkammblatt für eine Kämmaschine Withdrawn EP0452626A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH601/90 1990-02-26
CH601/90A CH680928A5 (ru) 1990-02-26 1990-02-26

Publications (1)

Publication Number Publication Date
EP0452626A1 true EP0452626A1 (de) 1991-10-23

Family

ID=4190765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102148A Withdrawn EP0452626A1 (de) 1990-02-26 1991-02-15 Fixkammblatt für eine Kämmaschine

Country Status (3)

Country Link
EP (1) EP0452626A1 (ru)
JP (1) JPH04214421A (ru)
CH (1) CH680928A5 (ru)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0531740A1 (de) * 1991-09-13 1993-03-17 Staedtler & Uhl Verfahren zum Reinigen eines Nadelstreifens, insbesondere eines Fixkamms für Textilvorbereitungsmaschinen, und Nadelstreifen zur Durchführung des Verfahrens
EP0580549A1 (de) * 1992-07-22 1994-01-26 Maschinenfabrik Rieter Ag Fixkammeinheit für eine Kämmaschine
EP0619389A1 (de) * 1993-03-29 1994-10-12 Maschinenfabrik Rieter Ag Zangenaggregat für eine Kämmaschine
EP0633333A1 (de) * 1993-07-06 1995-01-11 Maschinenfabrik Rieter Ag Steuerungseinrichtung zum gesteuerten Ausblasen eines Nadelstreifens
DE19640482A1 (de) * 1996-09-30 1998-04-02 Chemnitzer Spinnereimaschinen Zangenapparat für Kämmaschinen mit Rundkammwalze und lagestabilen Abreißwalzen
WO2004042125A1 (de) * 2002-11-08 2004-05-21 Staedtler + Uhl Kg Fixkamm und fixkammhalter für eine textile kämm-maschine
CN101818390A (zh) * 2010-04-23 2010-09-01 经纬纺织机械股份有限公司 精梳机锡林壳体防松装置
CN105420859A (zh) * 2016-01-13 2016-03-23 江苏凯宫机械股份有限公司 智能精梳机顶梳板压簧

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951126A1 (de) * 1999-10-23 2001-04-26 Staedtler & Uhl Fixkamm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU180122A1 (ru) * И. К. Яковлев , Ф. Т. Пыжов Приспособление для очистки игл вертикального гребня гребнечесальной машины периодическогодействия
GB236356A (en) * 1924-06-10 1925-07-09 Albert Disley Improvements appertaining to machines for combing cotton and like fibrous substances
DE433333C (de) * 1924-10-03 1926-08-28 Jules Weinbrenner Speisezange fuer Flachkaemmaschinen
DE1165468B (de) * 1957-10-04 1964-03-12 Alsacienne Constr Meca Vorrichtung zum Reinigen des Fixkammes von Kaemmaschinen
DE3815896A1 (de) * 1988-05-10 1989-11-23 Staedtler & Uhl Putzklingenanordnung fuer kaemme, insbesondere fixkaemme, an textilfaser-kaemm-maschinen, insbesondere baumwoll-kaemm-maschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU180122A1 (ru) * И. К. Яковлев , Ф. Т. Пыжов Приспособление для очистки игл вертикального гребня гребнечесальной машины периодическогодействия
GB236356A (en) * 1924-06-10 1925-07-09 Albert Disley Improvements appertaining to machines for combing cotton and like fibrous substances
DE433333C (de) * 1924-10-03 1926-08-28 Jules Weinbrenner Speisezange fuer Flachkaemmaschinen
DE1165468B (de) * 1957-10-04 1964-03-12 Alsacienne Constr Meca Vorrichtung zum Reinigen des Fixkammes von Kaemmaschinen
DE3815896A1 (de) * 1988-05-10 1989-11-23 Staedtler & Uhl Putzklingenanordnung fuer kaemme, insbesondere fixkaemme, an textilfaser-kaemm-maschinen, insbesondere baumwoll-kaemm-maschinen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0531740A1 (de) * 1991-09-13 1993-03-17 Staedtler & Uhl Verfahren zum Reinigen eines Nadelstreifens, insbesondere eines Fixkamms für Textilvorbereitungsmaschinen, und Nadelstreifen zur Durchführung des Verfahrens
EP0580549A1 (de) * 1992-07-22 1994-01-26 Maschinenfabrik Rieter Ag Fixkammeinheit für eine Kämmaschine
EP0619389A1 (de) * 1993-03-29 1994-10-12 Maschinenfabrik Rieter Ag Zangenaggregat für eine Kämmaschine
EP0633333A1 (de) * 1993-07-06 1995-01-11 Maschinenfabrik Rieter Ag Steuerungseinrichtung zum gesteuerten Ausblasen eines Nadelstreifens
DE19640482A1 (de) * 1996-09-30 1998-04-02 Chemnitzer Spinnereimaschinen Zangenapparat für Kämmaschinen mit Rundkammwalze und lagestabilen Abreißwalzen
WO2004042125A1 (de) * 2002-11-08 2004-05-21 Staedtler + Uhl Kg Fixkamm und fixkammhalter für eine textile kämm-maschine
CN100398711C (zh) * 2002-11-08 2008-07-02 施泰德勒和乌尔两合公司 用于纺织精梳机的顶梳和顶梳支架以及精梳机
CN101818390A (zh) * 2010-04-23 2010-09-01 经纬纺织机械股份有限公司 精梳机锡林壳体防松装置
CN105420859A (zh) * 2016-01-13 2016-03-23 江苏凯宫机械股份有限公司 智能精梳机顶梳板压簧

Also Published As

Publication number Publication date
JPH04214421A (ja) 1992-08-05
CH680928A5 (ru) 1992-12-15

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