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EP0542668A1 - Procédé de peignage et d'étirage de matière fibreuse et machine de peignage pour mettre en oeuvre le procédé - Google Patents

Procédé de peignage et d'étirage de matière fibreuse et machine de peignage pour mettre en oeuvre le procédé Download PDF

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Publication number
EP0542668A1
EP0542668A1 EP92810745A EP92810745A EP0542668A1 EP 0542668 A1 EP0542668 A1 EP 0542668A1 EP 92810745 A EP92810745 A EP 92810745A EP 92810745 A EP92810745 A EP 92810745A EP 0542668 A1 EP0542668 A1 EP 0542668A1
Authority
EP
European Patent Office
Prior art keywords
combing
belts
heads
layers
comb
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Withdrawn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
EP92810745A
Other languages
German (de)
English (en)
Inventor
Oliver Wüst
Andreas Jörg
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 EP0542668A1 publication Critical patent/EP0542668A1/fr
Withdrawn legal-status Critical Current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
    • D01G21/00—Combinations of machines, apparatus, or processes, e.g. for continuous processing
    • 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
    • D01G19/14—Drawing-off and delivery apparatus

Definitions

  • Known combing machines usually contain several, e.g. Eight combing heads arranged in a row, each of which is fed a ribbon-shaped cotton wool. Each combing head emits a comb web, which then runs through a funnel, which forms the web into a substantially circular comb web.
  • the combed sliver belts are drawn next to each other on a discharge table to a drafting system which is assigned to all combing heads together, or, for example, to two drafting systems, each of which is assigned to half of the combing heads.
  • the draft in the drafting system must also be increased accordingly so that a belt with the usual fineness is obtained at the exit of the drafting system.
  • the uniformity of the belt at the exit of the drafting system becomes worse. This deterioration in uniformity can only be avoided or compensated for by increasing the homogeneity of the fiber material fed to the drafting system.
  • the technical object of the invention is therefore to design the method specified in the preamble of claim 1 or the combing machine specified in the preamble of claim 6 such that the homogeneity of the fiber material fed to the drafting system is better than in known combing machines.
  • the object is achieved in the method according to the invention in that the sliver webs are each deformed into a flat band and in that the bands are fed to the drafting system in at least two layers one above the other.
  • the generally good homogeneity of the comb web nonwovens decreases less when shaping into a flat band, the width of which can be approximately 0.15 to 0.5 times the width of the comb web fleece, than in the previously customary shaping to a substantially circular band with a diameter approximately equal to 0.06 or 0.07 times the width of the sliver fleece.
  • the homogeneity of the fiber material that is fed to the drafting system in the form of layers of flat strips lying one above the other is of course much better than the homogeneity of fiber material in the form of round bands lying next to one another in alignment.
  • Fig. 1 shows schematically a pliers plate 1 and an upper pliers plate 2 of a vibrating pliers of a combing head of a combing machine.
  • a fiber beard from a fed cotton wool (not shown) is clamped between the edges of the plates 1 and 2 and is clamped combed out by a rotating circular comb, not shown.
  • the pliers In the illustrated advanced position of the pliers, the pliers are open, and a tear-off unit with two pairs of tear-off cylinders 3 and 4 tears off the combed-out fiber beard from the cotton wool lying in the pliers.
  • the tear-off unit combines the fiber tears that have been torn off one after the other to form a roving fleece that runs to a pair of draw-off rollers 5.
  • the combing machine contains several combing heads arranged in a row with the parts described above, for example eight combing heads. 2 and 3 of the first two combing heads and of the last two combing heads of the machine, only the draw-off roller pairs 5 and 5.1 or 5.6 and 5.7 are shown schematically.
  • the sliver webs released by the pairs of take-off rolls are each formed into a flat band, and the bands are laid on top of one another in at least two layers.
  • a layer is formed with the two flat belts, each of which comes from two adjacent combing heads. With eight combing heads, the tapes are therefore placed in four layers of two tapes on top of each other.
  • a fleece guide plate 6 or 6.3 is assigned to each two adjacent combing heads or take-off roller pairs, such as roller pairs 5 and 5.1 or roller pairs 5.6 and 5.7, which contains two elongated band-forming openings 7 and 7.1 or 7.6 and 7.7.
  • the sliver webs released by the two pairs of rollers, 5 and 5.1 or 5.6 and 5.7 run on the fleece guide plate 6 or 6.3 to one of the band-forming openings and are pulled through them and thereby each formed into a flat band.
  • two drivable transport roller pairs 8 and 8.1 or 8.6 and 8.7 are arranged in the region of the two band-forming openings.
  • the two belt-forming openings are arranged in such a way that the two flat comb-tension belts, which emerge from the openings, are pulled side by side between the rollers of the pairs of transport rollers.
  • the second pair of transport rollers 8.1 assigned to the first two combing heads of the combing machine emits the two combing belts from these combing heads onto a trough-shaped guide plate 9 which carries the running combing belts carries and guides laterally.
  • the guide plate 9 extends transversely to the working direction of the combing heads until just before the next second pair of transport rollers (not visible in the drawing), which is assigned to the two next combing heads of the combing machine.
  • This next second pair of transport rollers picks up the two combed belts next to each other from the first two comb heads and, as a second layer, the two combed belts from the third and fourth comb heads.
  • the four combed belts then run together on a next guide plate, similar to plate 9, to the second pair of transport rollers which are assigned to the fifth and sixth combing heads of the combing machine.
  • the two combed belts from the fifth and sixth combing heads are placed as a third layer on the four incoming combed belts.
  • the six sliver belts then run on a further groove-shaped guide plate 9.2 to the second pair of transport rollers 8.7, in which the sliver belts are placed as the fourth layer by the last two combing heads.
  • the pair of transport rollers 8.7 thus emits eight comb-type belts with a cross section approximately as shown schematically in FIG. 4 on a guide plate 10.
  • the eight sliver belts then run around a deflection element 11 and on a guide 12 to a drafting system, of which roller pairs 13 and 14 are shown schematically.
  • the combed fiber material which is fed to the drafting system 13, 14 in the form of flat comb-tensioning belts which are placed in pairs in four layers, is very homogeneous, as explained at the beginning. Therefore, higher distortions are possible in the drafting system 13, 14 than in known combing machines. This means that combs with higher weights can be fed to the combing heads.
  • the sliver webs released by the pairs of draw rollers 5, 5.1, etc. can each have a width of about 300 mm, for example. They can be formed from the band-forming openings 7, 7.1, etc. to form flat combing bands, each with a width of, for example, approximately 70 mm and a thickness of approximately 4 to 5 mm.
  • the flat combed ribbons of several combing heads can also be fed to the drafting system in less than four layers or more than four layers one above the other, wherein each layer can also contain fewer than two ribbons or more than two ribbons.
  • Fig. 5 shows schematically in cross-section two layers lying on top of each other with four flat combing belts
  • Fig. 6 shows three layers with three flat combing belts each (of nine combing heads).
  • the flat combed strips preferably have a width which is equal to 0.15 to 0.5 times the width of a combed fleece and / or equal to 5 to 50 times the strip thickness.
  • An additional advantage of the combing machine described is that the combed sliver belts are not simply pulled through the drafting system over an outlet table as in known machines, but are actively transported by the driven transport roller pairs, such as 8.1 and 8.7. This minimizes warping and damage to the fiber mass.
  • the peripheral speeds of the transport rollers preferably gradually increase somewhat in the running direction of the comber belts, so that the peripheral speed of each subsequent pair of transport rollers is a few percent higher than the peripheral speed of the preceding pair of transport rollers. A controlled warping of the fiber material on the way to the drafting system is thus advantageously brought about.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP92810745A 1991-11-12 1992-10-05 Procédé de peignage et d'étirage de matière fibreuse et machine de peignage pour mettre en oeuvre le procédé Withdrawn EP0542668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH330091A CH684005A5 (de) 1991-11-12 1991-11-12 Verfahren zum Kämmen und Verziehen von Fasermaterial und Kämmaschine zum Durchführen des Verfahrens.
CH3300/91 1991-11-12

Publications (1)

Publication Number Publication Date
EP0542668A1 true EP0542668A1 (fr) 1993-05-19

Family

ID=4253008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810745A Withdrawn EP0542668A1 (fr) 1991-11-12 1992-10-05 Procédé de peignage et d'étirage de matière fibreuse et machine de peignage pour mettre en oeuvre le procédé

Country Status (2)

Country Link
EP (1) EP0542668A1 (fr)
CH (1) CH684005A5 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679740A1 (fr) * 1994-04-29 1995-11-02 Maschinenfabrik Rieter Ag Arrangement des unités d'étirage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR434628A (fr) * 1911-09-16 1912-02-08 Jules Weinbrenner Procédé et dispositif pour le traitement des déchets de fibres végétales et animales provenant des machines à peigner
GB1271316A (en) * 1969-04-21 1972-04-19 Osaka Kiko Kabushiki Kaisha An improved method and apparatus for producing combed sliver
EP0349866A1 (fr) * 1988-07-04 1990-01-10 Maschinenfabrik Rieter Ag Guide de ruban attaché à la plaque de sortie d'une machine de peignage
EP0376002A1 (fr) * 1988-12-22 1990-07-04 Maschinenfabrik Rieter Ag Machine de peignage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR434628A (fr) * 1911-09-16 1912-02-08 Jules Weinbrenner Procédé et dispositif pour le traitement des déchets de fibres végétales et animales provenant des machines à peigner
GB1271316A (en) * 1969-04-21 1972-04-19 Osaka Kiko Kabushiki Kaisha An improved method and apparatus for producing combed sliver
EP0349866A1 (fr) * 1988-07-04 1990-01-10 Maschinenfabrik Rieter Ag Guide de ruban attaché à la plaque de sortie d'une machine de peignage
EP0376002A1 (fr) * 1988-12-22 1990-07-04 Maschinenfabrik Rieter Ag Machine de peignage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679740A1 (fr) * 1994-04-29 1995-11-02 Maschinenfabrik Rieter Ag Arrangement des unités d'étirage

Also Published As

Publication number Publication date
CH684005A5 (de) 1994-06-30

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